[1] From which part of the Omit is clove, the commonly used spice, obtained -
A.
Fruit
B.
Flower bud
C.
Stern
D.
Root
Ans:
Flower bud
Explanation :
Cloves are the aromatic dried flower buds of a tree in the family Myrtaceae, Syzygium aromaticum. The clove tree is an evergreen that grows to a height ranging from 8-12 m, having large leaves and sanguine flowers in numerous groups of terminal clusters. The flower buds are at first of a pale color and gradually become green, after which they develop into a bright red, when they are ready for collecting. Cloves are harvested when 1.5-2 cm long, and consist of a long calyx, terminating in four spreading sepals, and four unopened petals which form a small ball in the centre.
[2] Chewing gum is made from -
A.
Resin
B.
Tannin
C.
Latex
D.
Gum
Ans:
Latex
Explanation :
Chewing gum is a type of gum made of chicle, a natural latex product, or synthetic rubber known as polyisobutylene. Most chewing gums are considered polymers. Sugar-free gum sweetened with xylitol has been shown to reduce cavities and plaque. The sweetener sorbitol has the same benefit, but is only about one-third as effective as xylitol. Xylitol is specific in its inhibition of Streptococcus mutans, bacteria that are significant contributors to tooth decay.
[3] Rickets is the deficiency disease of Vitamin D, in which the affected part is the -
A.
skin
B.
hair
C.
bone
D.
blood
Ans:
bone
Explanation :
Rickets is a softening of bones in children due to deficiency or impaired metabolism of vitamin D, phosphorus or calcium, potentially leading to fractures and deformity. Rickets is among the most frequent childhood diseases in many developing countries. The predominant cause is a vitamin D deficiency, but lack of adequate calcium in the diet may also lead to rickets (cases of severe diarrhea and vomiting may be the cause of the deficiency).
[4] Darvvin finches' refers to a group of -
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin's finches (also known as the Galapagos finches) are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. It is still not clear which bird family they belong to, but they are not related to the true finches. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands, except the Cocos Island Finch from Cocos Island.
[5] Which phenomenon do bats or dolphins use to find prey, predators or obstacles?
A.
Refraction of sound
B.
Formation of beats
C.
Scattering of sound
D.
Echo location
Ans:
Echo location
Explanation :
Echolocation, also called biosonar, is the biological sonar used by several kinds of animals. Echolocating animals emit calls out to the environment and listen to the echoes of those calls that return from various objects near them. They use these echoes to locate and identify the objects. Echolocating animals include some mammals and a few birds; most notably microchiropteran bats and odontocetes (toothed whales and dolphins), but also in simpler form in other groups such as shrews, one genus of megachiropteran bats (Rousettus) and two cave dwelling bird groups, the so-called cave swiftlets in the genus Aerodramus (formerly Collocalia) and the unrelated Of bird Steatornis caripensis.
[6] Columba livia is the scientific name of -
A.
Pigeon
B.
Snake
C.
Rabbit
D.
Shark
Ans:
Pigeon
Explanation :
The Rock Dove (Columba livia) or Rock Pigeon, is a member of the bird family Columbidae (doves and pigeons). In common usage, this bird is often simply referred to as the "pigeon". The species includes the domestic pigeon (including the fancy pigeon), and escaped domestic pigeons have given rise to feral populations around the world. The Rock Dove was first described by Gmelin in 1789. The genus name Columba is the Latinized form of the Ancient Greek (kolumbos), "a diver".
[7] Bones are pneumatic in -
A.
Fishes
B.
Amphibians
C.
Reptiles
D.
Birds
Ans:
Birds
Explanation :
Pneumatic bone is hollow bone filled with air, connected to the respiratory system. Many of a bird's bones are pneumatic, with struts across their hollow interiors to provide a combination of light weight and strength as an adaptation to flying. For flight to occur in Ayes, four physical forces (thrust and drag, lift and weight) must work together. In order for birds to balance these forces, certain physical characteristics are required. Flying birds have evolved reduced weight through several characteristics.
[8] The pigment involved in photosynthetic activity is -
A.
anthocyanin
B.
fucxanthin
C.
carotenoid
D.
chlorophyll
Ans:
chlorophyll
Explanation :
Chlorophyll is an extremely important bio-molecule, critical in photosynthesis, which allows plants to absorb energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. However, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues.
[9] Free-living nitrogen fixing micro-organisms are -
A.
Rhizobia
B.
Soil fungi
C.
Vesicular arbuscular mycorrhiza
D.
Blue green algae
Ans:
Rhizobia
Explanation :
Rhizobia are soil bacteria that fix nitrogen (diazotrophs) after becoming established inside root nodules of legumes. Rhizobia require a plant host; they cannot independently fix nitrogen. In general, they are Gram-negative, motile, non-sporulating rods.
[10] Vegetable oils are converted into solid fat (ghee) by -
A.
Hydrolysis
B.
Addition of agar
C.
Oxidation using air and a catalyst
D.
Hydrogenation
Ans:
Hydrogenation
Explanation :
Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. The largest scale application of hydrogenation is for the processing of vegetable oils (fats to give margarine and related spreads and shortenings). Typical vegetable oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).
[11] A drug which helps in controlling fever is -
A.
Ibuprofen
B.
Penicillin
C.
Paracetamol
D.
Corticosteroid
Ans:
Paracetamol
Explanation :
Paracetamol is a widely used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer). The World Health Organization (WHO) recommends that paracetamol only be used to treat fever in children if their temperature is greater than 38.5 °C.
[12] An insect - catching plant is :
A.
Australian Acacia
B.
Smilax
C.
Nepenthes
D.
Nerium
Ans:
Nepenthes
Explanation :
Nepenthes mirabilis or the Common Swamp Pitcher-Plant, is a tropical carnivorous plant species of the pitfall trap variety. It has by far the widest distribution of any Nepenthes species and is known from the following countries and regions. A great number of in faunal organisms have been found in the pitchers of this species. These include the sarcophagid fly Sarcophaga papuensis and the mite Nepenthacarus warreni.
[13] The method not used as a Biological control is :
A.
Use of predators of a pest
B.
Pheromone traps
C.
Use of pesticides
D.
Use of neem extracts
Ans:
Use of pesticides
Explanation :
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. Pesticides are a special kind of products for crop protection. Crop protection products in general protect plants from damaging influences such as weeds, diseases or insects. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests.
[14] 'Cod' is a variety of -
A.
Goat
B.
Fish
C.
Crop
D.
Coral
Ans:
Fish
Explanation :
Cod is the common name for the genus Gadus of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod (the Alaska pollock). Cod is popular as a food with a mild flavour and a dense, flaky white flesh and omega-3 fatty acids (EPA and DHA). Young Atlantic cod or haddock prepared in strips for cooking is called scrod. In the United Kingdom, Atlantic cod is one of the most common ingredients in fish and chips, along with haddock and plaice.
[15] dried flower buds are used as a spice in -
A.
Cardamom
B.
Cinnamon
C.
Cloves
D.
(3) Saffron
Ans:
Cloves
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Cloves are the aromatic dried flower buds of a tree in the family Myrtaceae, Syzygium aromaticum. The clove tree is an evergreen that grows to a height ranging from 8-12 m, having large leaves and sanguine flowers in numerous groups of terminal clusters. The flower buds are at first of a pale color and gradually become green, after which they develop into a bright red, when they are ready for collecting. Cloves are harvested when 1.5-2 cm long, and consist of a long calyx, terminating in four spreading sepals, and four unopened petals which form a small ball in the centre.
[2] Chewing gum is made from -
A.
Resin
B.
Tannin
C.
Latex
D.
Gum
Ans:
Latex
Explanation :
Chewing gum is a type of gum made of chicle, a natural latex product, or synthetic rubber known as polyisobutylene. Most chewing gums are considered polymers. Sugar-free gum sweetened with xylitol has been shown to reduce cavities and plaque. The sweetener sorbitol has the same benefit, but is only about one-third as effective as xylitol. Xylitol is specific in its inhibition of Streptococcus mutans, bacteria that are significant contributors to tooth decay.
[3] Rickets is the deficiency disease of Vitamin D, in which the affected part is the -
A.
skin
B.
hair
C.
bone
D.
blood
Ans:
bone
Explanation :
Rickets is a softening of bones in children due to deficiency or impaired metabolism of vitamin D, phosphorus or calcium, potentially leading to fractures and deformity. Rickets is among the most frequent childhood diseases in many developing countries. The predominant cause is a vitamin D deficiency, but lack of adequate calcium in the diet may also lead to rickets (cases of severe diarrhea and vomiting may be the cause of the deficiency).
[4] Darvvin finches' refers to a group of -
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin's finches (also known as the Galapagos finches) are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. It is still not clear which bird family they belong to, but they are not related to the true finches. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands, except the Cocos Island Finch from Cocos Island.
[5] Which phenomenon do bats or dolphins use to find prey, predators or obstacles?
A.
Refraction of sound
B.
Formation of beats
C.
Scattering of sound
D.
Echo location
Ans:
Echo location
Explanation :
Echolocation, also called biosonar, is the biological sonar used by several kinds of animals. Echolocating animals emit calls out to the environment and listen to the echoes of those calls that return from various objects near them. They use these echoes to locate and identify the objects. Echolocating animals include some mammals and a few birds; most notably microchiropteran bats and odontocetes (toothed whales and dolphins), but also in simpler form in other groups such as shrews, one genus of megachiropteran bats (Rousettus) and two cave dwelling bird groups, the so-called cave swiftlets in the genus Aerodramus (formerly Collocalia) and the unrelated Of bird Steatornis caripensis.
[6] Columba livia is the scientific name of -
A.
Pigeon
B.
Snake
C.
Rabbit
D.
Shark
Ans:
Pigeon
Explanation :
The Rock Dove (Columba livia) or Rock Pigeon, is a member of the bird family Columbidae (doves and pigeons). In common usage, this bird is often simply referred to as the "pigeon". The species includes the domestic pigeon (including the fancy pigeon), and escaped domestic pigeons have given rise to feral populations around the world. The Rock Dove was first described by Gmelin in 1789. The genus name Columba is the Latinized form of the Ancient Greek (kolumbos), "a diver".
[7] Bones are pneumatic in -
A.
Fishes
B.
Amphibians
C.
Reptiles
D.
Birds
Ans:
Birds
Explanation :
Pneumatic bone is hollow bone filled with air, connected to the respiratory system. Many of a bird's bones are pneumatic, with struts across their hollow interiors to provide a combination of light weight and strength as an adaptation to flying. For flight to occur in Ayes, four physical forces (thrust and drag, lift and weight) must work together. In order for birds to balance these forces, certain physical characteristics are required. Flying birds have evolved reduced weight through several characteristics.
[8] The pigment involved in photosynthetic activity is -
A.
anthocyanin
B.
fucxanthin
C.
carotenoid
D.
chlorophyll
Ans:
chlorophyll
Explanation :
Chlorophyll is an extremely important bio-molecule, critical in photosynthesis, which allows plants to absorb energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. However, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues.
[9] Free-living nitrogen fixing micro-organisms are -
A.
Rhizobia
B.
Soil fungi
C.
Vesicular arbuscular mycorrhiza
D.
Blue green algae
Ans:
Rhizobia
Explanation :
Rhizobia are soil bacteria that fix nitrogen (diazotrophs) after becoming established inside root nodules of legumes. Rhizobia require a plant host; they cannot independently fix nitrogen. In general, they are Gram-negative, motile, non-sporulating rods.
[10] Vegetable oils are converted into solid fat (ghee) by -
A.
Hydrolysis
B.
Addition of agar
C.
Oxidation using air and a catalyst
D.
Hydrogenation
Ans:
Hydrogenation
Explanation :
Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. The largest scale application of hydrogenation is for the processing of vegetable oils (fats to give margarine and related spreads and shortenings). Typical vegetable oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).
[11] A drug which helps in controlling fever is -
A.
Ibuprofen
B.
Penicillin
C.
Paracetamol
D.
Corticosteroid
Ans:
Paracetamol
Explanation :
Paracetamol is a widely used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer). The World Health Organization (WHO) recommends that paracetamol only be used to treat fever in children if their temperature is greater than 38.5 °C.
[12] An insect - catching plant is :
A.
Australian Acacia
B.
Smilax
C.
Nepenthes
D.
Nerium
Ans:
Nepenthes
Explanation :
Nepenthes mirabilis or the Common Swamp Pitcher-Plant, is a tropical carnivorous plant species of the pitfall trap variety. It has by far the widest distribution of any Nepenthes species and is known from the following countries and regions. A great number of in faunal organisms have been found in the pitchers of this species. These include the sarcophagid fly Sarcophaga papuensis and the mite Nepenthacarus warreni.
[13] The method not used as a Biological control is :
A.
Use of predators of a pest
B.
Pheromone traps
C.
Use of pesticides
D.
Use of neem extracts
Ans:
Use of pesticides
Explanation :
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. Pesticides are a special kind of products for crop protection. Crop protection products in general protect plants from damaging influences such as weeds, diseases or insects. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests.
[14] 'Cod' is a variety of -
A.
Goat
B.
Fish
C.
Crop
D.
Coral
Ans:
Fish
Explanation :
Cod is the common name for the genus Gadus of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod (the Alaska pollock). Cod is popular as a food with a mild flavour and a dense, flaky white flesh and omega-3 fatty acids (EPA and DHA). Young Atlantic cod or haddock prepared in strips for cooking is called scrod. In the United Kingdom, Atlantic cod is one of the most common ingredients in fish and chips, along with haddock and plaice.
[15] dried flower buds are used as a spice in -
A.
Cardamom
B.
Cinnamon
C.
Cloves
D.
(3) Saffron
Ans:
Cloves
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Rickets is a softening of bones in children due to deficiency or impaired metabolism of vitamin D, phosphorus or calcium, potentially leading to fractures and deformity. Rickets is among the most frequent childhood diseases in many developing countries. The predominant cause is a vitamin D deficiency, but lack of adequate calcium in the diet may also lead to rickets (cases of severe diarrhea and vomiting may be the cause of the deficiency).
[4] Darvvin finches' refers to a group of -
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin's finches (also known as the Galapagos finches) are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. It is still not clear which bird family they belong to, but they are not related to the true finches. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands, except the Cocos Island Finch from Cocos Island.
[5] Which phenomenon do bats or dolphins use to find prey, predators or obstacles?
A.
Refraction of sound
B.
Formation of beats
C.
Scattering of sound
D.
Echo location
Ans:
Echo location
Explanation :
Echolocation, also called biosonar, is the biological sonar used by several kinds of animals. Echolocating animals emit calls out to the environment and listen to the echoes of those calls that return from various objects near them. They use these echoes to locate and identify the objects. Echolocating animals include some mammals and a few birds; most notably microchiropteran bats and odontocetes (toothed whales and dolphins), but also in simpler form in other groups such as shrews, one genus of megachiropteran bats (Rousettus) and two cave dwelling bird groups, the so-called cave swiftlets in the genus Aerodramus (formerly Collocalia) and the unrelated Of bird Steatornis caripensis.
[6] Columba livia is the scientific name of -
A.
Pigeon
B.
Snake
C.
Rabbit
D.
Shark
Ans:
Pigeon
Explanation :
The Rock Dove (Columba livia) or Rock Pigeon, is a member of the bird family Columbidae (doves and pigeons). In common usage, this bird is often simply referred to as the "pigeon". The species includes the domestic pigeon (including the fancy pigeon), and escaped domestic pigeons have given rise to feral populations around the world. The Rock Dove was first described by Gmelin in 1789. The genus name Columba is the Latinized form of the Ancient Greek (kolumbos), "a diver".
[7] Bones are pneumatic in -
A.
Fishes
B.
Amphibians
C.
Reptiles
D.
Birds
Ans:
Birds
Explanation :
Pneumatic bone is hollow bone filled with air, connected to the respiratory system. Many of a bird's bones are pneumatic, with struts across their hollow interiors to provide a combination of light weight and strength as an adaptation to flying. For flight to occur in Ayes, four physical forces (thrust and drag, lift and weight) must work together. In order for birds to balance these forces, certain physical characteristics are required. Flying birds have evolved reduced weight through several characteristics.
[8] The pigment involved in photosynthetic activity is -
A.
anthocyanin
B.
fucxanthin
C.
carotenoid
D.
chlorophyll
Ans:
chlorophyll
Explanation :
Chlorophyll is an extremely important bio-molecule, critical in photosynthesis, which allows plants to absorb energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. However, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues.
[9] Free-living nitrogen fixing micro-organisms are -
A.
Rhizobia
B.
Soil fungi
C.
Vesicular arbuscular mycorrhiza
D.
Blue green algae
Ans:
Rhizobia
Explanation :
Rhizobia are soil bacteria that fix nitrogen (diazotrophs) after becoming established inside root nodules of legumes. Rhizobia require a plant host; they cannot independently fix nitrogen. In general, they are Gram-negative, motile, non-sporulating rods.
[10] Vegetable oils are converted into solid fat (ghee) by -
A.
Hydrolysis
B.
Addition of agar
C.
Oxidation using air and a catalyst
D.
Hydrogenation
Ans:
Hydrogenation
Explanation :
Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. The largest scale application of hydrogenation is for the processing of vegetable oils (fats to give margarine and related spreads and shortenings). Typical vegetable oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).
[11] A drug which helps in controlling fever is -
A.
Ibuprofen
B.
Penicillin
C.
Paracetamol
D.
Corticosteroid
Ans:
Paracetamol
Explanation :
Paracetamol is a widely used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer). The World Health Organization (WHO) recommends that paracetamol only be used to treat fever in children if their temperature is greater than 38.5 °C.
[12] An insect - catching plant is :
A.
Australian Acacia
B.
Smilax
C.
Nepenthes
D.
Nerium
Ans:
Nepenthes
Explanation :
Nepenthes mirabilis or the Common Swamp Pitcher-Plant, is a tropical carnivorous plant species of the pitfall trap variety. It has by far the widest distribution of any Nepenthes species and is known from the following countries and regions. A great number of in faunal organisms have been found in the pitchers of this species. These include the sarcophagid fly Sarcophaga papuensis and the mite Nepenthacarus warreni.
[13] The method not used as a Biological control is :
A.
Use of predators of a pest
B.
Pheromone traps
C.
Use of pesticides
D.
Use of neem extracts
Ans:
Use of pesticides
Explanation :
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. Pesticides are a special kind of products for crop protection. Crop protection products in general protect plants from damaging influences such as weeds, diseases or insects. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests.
[14] 'Cod' is a variety of -
A.
Goat
B.
Fish
C.
Crop
D.
Coral
Ans:
Fish
Explanation :
Cod is the common name for the genus Gadus of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod (the Alaska pollock). Cod is popular as a food with a mild flavour and a dense, flaky white flesh and omega-3 fatty acids (EPA and DHA). Young Atlantic cod or haddock prepared in strips for cooking is called scrod. In the United Kingdom, Atlantic cod is one of the most common ingredients in fish and chips, along with haddock and plaice.
[15] dried flower buds are used as a spice in -
A.
Cardamom
B.
Cinnamon
C.
Cloves
D.
(3) Saffron
Ans:
Cloves
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Echolocation, also called biosonar, is the biological sonar used by several kinds of animals. Echolocating animals emit calls out to the environment and listen to the echoes of those calls that return from various objects near them. They use these echoes to locate and identify the objects. Echolocating animals include some mammals and a few birds; most notably microchiropteran bats and odontocetes (toothed whales and dolphins), but also in simpler form in other groups such as shrews, one genus of megachiropteran bats (Rousettus) and two cave dwelling bird groups, the so-called cave swiftlets in the genus Aerodramus (formerly Collocalia) and the unrelated Of bird Steatornis caripensis.
[6] Columba livia is the scientific name of -
A.
Pigeon
B.
Snake
C.
Rabbit
D.
Shark
Ans:
Pigeon
Explanation :
The Rock Dove (Columba livia) or Rock Pigeon, is a member of the bird family Columbidae (doves and pigeons). In common usage, this bird is often simply referred to as the "pigeon". The species includes the domestic pigeon (including the fancy pigeon), and escaped domestic pigeons have given rise to feral populations around the world. The Rock Dove was first described by Gmelin in 1789. The genus name Columba is the Latinized form of the Ancient Greek (kolumbos), "a diver".
[7] Bones are pneumatic in -
A.
Fishes
B.
Amphibians
C.
Reptiles
D.
Birds
Ans:
Birds
Explanation :
Pneumatic bone is hollow bone filled with air, connected to the respiratory system. Many of a bird's bones are pneumatic, with struts across their hollow interiors to provide a combination of light weight and strength as an adaptation to flying. For flight to occur in Ayes, four physical forces (thrust and drag, lift and weight) must work together. In order for birds to balance these forces, certain physical characteristics are required. Flying birds have evolved reduced weight through several characteristics.
[8] The pigment involved in photosynthetic activity is -
A.
anthocyanin
B.
fucxanthin
C.
carotenoid
D.
chlorophyll
Ans:
chlorophyll
Explanation :
Chlorophyll is an extremely important bio-molecule, critical in photosynthesis, which allows plants to absorb energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. However, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues.
[9] Free-living nitrogen fixing micro-organisms are -
A.
Rhizobia
B.
Soil fungi
C.
Vesicular arbuscular mycorrhiza
D.
Blue green algae
Ans:
Rhizobia
Explanation :
Rhizobia are soil bacteria that fix nitrogen (diazotrophs) after becoming established inside root nodules of legumes. Rhizobia require a plant host; they cannot independently fix nitrogen. In general, they are Gram-negative, motile, non-sporulating rods.
[10] Vegetable oils are converted into solid fat (ghee) by -
A.
Hydrolysis
B.
Addition of agar
C.
Oxidation using air and a catalyst
D.
Hydrogenation
Ans:
Hydrogenation
Explanation :
Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. The largest scale application of hydrogenation is for the processing of vegetable oils (fats to give margarine and related spreads and shortenings). Typical vegetable oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).
[11] A drug which helps in controlling fever is -
A.
Ibuprofen
B.
Penicillin
C.
Paracetamol
D.
Corticosteroid
Ans:
Paracetamol
Explanation :
Paracetamol is a widely used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer). The World Health Organization (WHO) recommends that paracetamol only be used to treat fever in children if their temperature is greater than 38.5 °C.
[12] An insect - catching plant is :
A.
Australian Acacia
B.
Smilax
C.
Nepenthes
D.
Nerium
Ans:
Nepenthes
Explanation :
Nepenthes mirabilis or the Common Swamp Pitcher-Plant, is a tropical carnivorous plant species of the pitfall trap variety. It has by far the widest distribution of any Nepenthes species and is known from the following countries and regions. A great number of in faunal organisms have been found in the pitchers of this species. These include the sarcophagid fly Sarcophaga papuensis and the mite Nepenthacarus warreni.
[13] The method not used as a Biological control is :
A.
Use of predators of a pest
B.
Pheromone traps
C.
Use of pesticides
D.
Use of neem extracts
Ans:
Use of pesticides
Explanation :
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. Pesticides are a special kind of products for crop protection. Crop protection products in general protect plants from damaging influences such as weeds, diseases or insects. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests.
[14] 'Cod' is a variety of -
A.
Goat
B.
Fish
C.
Crop
D.
Coral
Ans:
Fish
Explanation :
Cod is the common name for the genus Gadus of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod (the Alaska pollock). Cod is popular as a food with a mild flavour and a dense, flaky white flesh and omega-3 fatty acids (EPA and DHA). Young Atlantic cod or haddock prepared in strips for cooking is called scrod. In the United Kingdom, Atlantic cod is one of the most common ingredients in fish and chips, along with haddock and plaice.
[15] dried flower buds are used as a spice in -
A.
Cardamom
B.
Cinnamon
C.
Cloves
D.
(3) Saffron
Ans:
Cloves
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Pneumatic bone is hollow bone filled with air, connected to the respiratory system. Many of a bird's bones are pneumatic, with struts across their hollow interiors to provide a combination of light weight and strength as an adaptation to flying. For flight to occur in Ayes, four physical forces (thrust and drag, lift and weight) must work together. In order for birds to balance these forces, certain physical characteristics are required. Flying birds have evolved reduced weight through several characteristics.
[8] The pigment involved in photosynthetic activity is -
A.
anthocyanin
B.
fucxanthin
C.
carotenoid
D.
chlorophyll
Ans:
chlorophyll
Explanation :
Chlorophyll is an extremely important bio-molecule, critical in photosynthesis, which allows plants to absorb energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. However, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues.
[9] Free-living nitrogen fixing micro-organisms are -
A.
Rhizobia
B.
Soil fungi
C.
Vesicular arbuscular mycorrhiza
D.
Blue green algae
Ans:
Rhizobia
Explanation :
Rhizobia are soil bacteria that fix nitrogen (diazotrophs) after becoming established inside root nodules of legumes. Rhizobia require a plant host; they cannot independently fix nitrogen. In general, they are Gram-negative, motile, non-sporulating rods.
[10] Vegetable oils are converted into solid fat (ghee) by -
A.
Hydrolysis
B.
Addition of agar
C.
Oxidation using air and a catalyst
D.
Hydrogenation
Ans:
Hydrogenation
Explanation :
Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. The largest scale application of hydrogenation is for the processing of vegetable oils (fats to give margarine and related spreads and shortenings). Typical vegetable oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).
[11] A drug which helps in controlling fever is -
A.
Ibuprofen
B.
Penicillin
C.
Paracetamol
D.
Corticosteroid
Ans:
Paracetamol
Explanation :
Paracetamol is a widely used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer). The World Health Organization (WHO) recommends that paracetamol only be used to treat fever in children if their temperature is greater than 38.5 °C.
[12] An insect - catching plant is :
A.
Australian Acacia
B.
Smilax
C.
Nepenthes
D.
Nerium
Ans:
Nepenthes
Explanation :
Nepenthes mirabilis or the Common Swamp Pitcher-Plant, is a tropical carnivorous plant species of the pitfall trap variety. It has by far the widest distribution of any Nepenthes species and is known from the following countries and regions. A great number of in faunal organisms have been found in the pitchers of this species. These include the sarcophagid fly Sarcophaga papuensis and the mite Nepenthacarus warreni.
[13] The method not used as a Biological control is :
A.
Use of predators of a pest
B.
Pheromone traps
C.
Use of pesticides
D.
Use of neem extracts
Ans:
Use of pesticides
Explanation :
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. Pesticides are a special kind of products for crop protection. Crop protection products in general protect plants from damaging influences such as weeds, diseases or insects. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests.
[14] 'Cod' is a variety of -
A.
Goat
B.
Fish
C.
Crop
D.
Coral
Ans:
Fish
Explanation :
Cod is the common name for the genus Gadus of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod (the Alaska pollock). Cod is popular as a food with a mild flavour and a dense, flaky white flesh and omega-3 fatty acids (EPA and DHA). Young Atlantic cod or haddock prepared in strips for cooking is called scrod. In the United Kingdom, Atlantic cod is one of the most common ingredients in fish and chips, along with haddock and plaice.
[15] dried flower buds are used as a spice in -
A.
Cardamom
B.
Cinnamon
C.
Cloves
D.
(3) Saffron
Ans:
Cloves
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Rhizobia are soil bacteria that fix nitrogen (diazotrophs) after becoming established inside root nodules of legumes. Rhizobia require a plant host; they cannot independently fix nitrogen. In general, they are Gram-negative, motile, non-sporulating rods.
[10] Vegetable oils are converted into solid fat (ghee) by -
A.
Hydrolysis
B.
Addition of agar
C.
Oxidation using air and a catalyst
D.
Hydrogenation
Ans:
Hydrogenation
Explanation :
Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. The largest scale application of hydrogenation is for the processing of vegetable oils (fats to give margarine and related spreads and shortenings). Typical vegetable oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).
[11] A drug which helps in controlling fever is -
A.
Ibuprofen
B.
Penicillin
C.
Paracetamol
D.
Corticosteroid
Ans:
Paracetamol
Explanation :
Paracetamol is a widely used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer). The World Health Organization (WHO) recommends that paracetamol only be used to treat fever in children if their temperature is greater than 38.5 °C.
[12] An insect - catching plant is :
A.
Australian Acacia
B.
Smilax
C.
Nepenthes
D.
Nerium
Ans:
Nepenthes
Explanation :
Nepenthes mirabilis or the Common Swamp Pitcher-Plant, is a tropical carnivorous plant species of the pitfall trap variety. It has by far the widest distribution of any Nepenthes species and is known from the following countries and regions. A great number of in faunal organisms have been found in the pitchers of this species. These include the sarcophagid fly Sarcophaga papuensis and the mite Nepenthacarus warreni.
[13] The method not used as a Biological control is :
A.
Use of predators of a pest
B.
Pheromone traps
C.
Use of pesticides
D.
Use of neem extracts
Ans:
Use of pesticides
Explanation :
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. Pesticides are a special kind of products for crop protection. Crop protection products in general protect plants from damaging influences such as weeds, diseases or insects. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests.
[14] 'Cod' is a variety of -
A.
Goat
B.
Fish
C.
Crop
D.
Coral
Ans:
Fish
Explanation :
Cod is the common name for the genus Gadus of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod (the Alaska pollock). Cod is popular as a food with a mild flavour and a dense, flaky white flesh and omega-3 fatty acids (EPA and DHA). Young Atlantic cod or haddock prepared in strips for cooking is called scrod. In the United Kingdom, Atlantic cod is one of the most common ingredients in fish and chips, along with haddock and plaice.
[15] dried flower buds are used as a spice in -
A.
Cardamom
B.
Cinnamon
C.
Cloves
D.
(3) Saffron
Ans:
Cloves
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Paracetamol is a widely used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer). The World Health Organization (WHO) recommends that paracetamol only be used to treat fever in children if their temperature is greater than 38.5 °C.
[12] An insect - catching plant is :
A.
Australian Acacia
B.
Smilax
C.
Nepenthes
D.
Nerium
Ans:
Nepenthes
Explanation :
Nepenthes mirabilis or the Common Swamp Pitcher-Plant, is a tropical carnivorous plant species of the pitfall trap variety. It has by far the widest distribution of any Nepenthes species and is known from the following countries and regions. A great number of in faunal organisms have been found in the pitchers of this species. These include the sarcophagid fly Sarcophaga papuensis and the mite Nepenthacarus warreni.
[13] The method not used as a Biological control is :
A.
Use of predators of a pest
B.
Pheromone traps
C.
Use of pesticides
D.
Use of neem extracts
Ans:
Use of pesticides
Explanation :
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. Pesticides are a special kind of products for crop protection. Crop protection products in general protect plants from damaging influences such as weeds, diseases or insects. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests.
[14] 'Cod' is a variety of -
A.
Goat
B.
Fish
C.
Crop
D.
Coral
Ans:
Fish
Explanation :
Cod is the common name for the genus Gadus of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod (the Alaska pollock). Cod is popular as a food with a mild flavour and a dense, flaky white flesh and omega-3 fatty acids (EPA and DHA). Young Atlantic cod or haddock prepared in strips for cooking is called scrod. In the United Kingdom, Atlantic cod is one of the most common ingredients in fish and chips, along with haddock and plaice.
[15] dried flower buds are used as a spice in -
A.
Cardamom
B.
Cinnamon
C.
Cloves
D.
(3) Saffron
Ans:
Cloves
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. Pesticides are a special kind of products for crop protection. Crop protection products in general protect plants from damaging influences such as weeds, diseases or insects. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests.
[14] 'Cod' is a variety of -
A.
Goat
B.
Fish
C.
Crop
D.
Coral
Ans:
Fish
Explanation :
Cod is the common name for the genus Gadus of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod (the Alaska pollock). Cod is popular as a food with a mild flavour and a dense, flaky white flesh and omega-3 fatty acids (EPA and DHA). Young Atlantic cod or haddock prepared in strips for cooking is called scrod. In the United Kingdom, Atlantic cod is one of the most common ingredients in fish and chips, along with haddock and plaice.
[15] dried flower buds are used as a spice in -
A.
Cardamom
B.
Cinnamon
C.
Cloves
D.
(3) Saffron
Ans:
Cloves
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savory dishes.
[16] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must be repaired often such as the lining of gut, white blood cells, skin cells with a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.
[17] The brain of human adult weighs about -
A.
1200 - 1300 gm
B.
1600 - 2000 gm
C.
500 - 800 gm
D.
104 - 200 gm
Ans:
1200 - 1300 gm
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimeters (cm3) in women and 1260 cm3 in men, although there is substantial individual variation. Men with the same body height and body surface area as women have on average 100g heavier brains, although these differences do not correlate in any simple way with IQ or other measures of cognitive performance. The human brain has the same general structure as the brains of other mammals, but is larger than any other in relation to body size.
[18] Total number of bones in man is -
A.
206
B.
266
C.
300
D.
306
Ans:
206
Explanation :
A typical adult human skeleton consists of 206 bones. The 206 bones of the skeleton provide a framework and points of attachment for many of the soft tissues of the body. The number of bones changes with age as multiple ossifies nuclei joined by synchondroses fuse into fewer mature bones.
[19] Which of the following pairs is incorrectly matched?
A.
Vitamin C- Scurvy
B.
Vitamin K - Haomorrhage
C.
Vitamin A - Night Blindness
D.
Vitamin E - Rickets
Ans:
Vitamin E - Rickets
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.
[20] ‘Bos Taurus’ is a scientific name of -
A.
Buffalo
B.
Horse
C.
Cow
D.
Cat
Ans:
Cow
Explanation :
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bostaurus.
[21] The carbon dioxide content in the air that we exhale is about -
A.
0.04
B.
0.08
C.
0.12
D.
0.16
Ans:
0.04
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Carbon dioxide exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.
[22] Maximum harm to a tree is caused by -
A.
Loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Maximum harm to a tree is caused by loss of leaves. This means that the tree will loose its ability to perform photosynthesis or food manufacture. Leaves are a plant's main photosynthetic organs. Leaf structure is closely associated with its photosynthetic function. Leaves must permit carbon dioxide access to the photosynthetic cells but impede water from diffusing out. The oxygen that is a waste product of photosynthesis must be allowed to escape from the leaf
[23] Which one of the following is not a plant product?
A.
Caffeine
B.
Pipeline
C.
Nicotine
D.
Saccharin
Ans:
Saccharin
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Saccharin is an artificial sweetener. The basic substance, benzoic sulfilimine, has effectively no food energy and is much sweeter than sucrose, but has a bitter or metallic aftertaste, especially at high concentrations. It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste. Saccharin derives its name from the word saccharine, meaning of, relating to, or resembling that of sugar.
[24] Which one of the following is not a true snake?
A.
Glass snake
B.
Sea snake
C.
Tree snake
D.
Blind snake
Ans:
Glass snake
Explanation :
The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub- like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.
[25] Tamiflu is frontline drug against -
A.
bird flu
B.
cancer
C.
AIDS
D.
polio
Ans:
bird flu
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.
Explanation :
Oseltamivir marketed under the trade name Tami flu, is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. The drug is taken orally in capsules or as a suspension. It has been used to treat and prevent influenza A virus and influenza B virus infection in over 50 million people since 1999.