[1] Who coined the term gene?
A.
Mendel
B.
Johannsen
C.
Watson
D.
Beadle
Ans:
Johannsen
Explanation :
Danish botanist Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity. He also made the distinction between the outward appearance of an individual (phenotype) and its genetic traits (genotype).
[2] The term ‘genetics’ was coined by -
A.
Morgan
B.
Mendel
C.
Bateson
D.
Johannsen
Ans:
Bateson
Explanation :
Danish botanist Wilhelm Johansen coined the term 'gene'. The term 'genetics' was coined by Bateson.
[3] The maximum biological damage is produced by -
A.
X rays
B.
gamma rays
C.
beta rays
D.
alpha rays
Ans:
gamma rays
Explanation :
Gamma radiation, also known as gamma rays, is electromagnetic radiation of high frequency and therefore high energy. Gamma rays are ionizing radiation and are thus biologically hazardous.
[4] Which protein - sugar pair is present in milk?
A.
Casein, Sucrose
B.
Casein, Lactose
C.
Fenitin, Maltose
D.
Albumin, Glucose
Ans:
Casein, Lactose
Explanation :
Casein-Lactose protein-sugar pair is present in milk. Normal bovine milk contains 30-35 grams of protein per litre of which about 80 percent is arranged in casein micelles.
[5] Who discovered that Malaria was caused by female Anopheles?
A.
Edward Jenner
B.
Louis Pasteur
C.
Robert Koch
D.
Ronald Ross
Ans:
Ronald Ross
Explanation :
Edward Jenner of Britain discovered vaccination in 1796. Louis Pasteur of France discovered Rabies vaccine in 1860. Robert Koch of Germany discovered Cholera, TB germs in 1877. Sir Ronald Ross was a British Physician and entomologist, noted for identifying the links between mosquitoes and malaria. He was born in India in 1857 at Almora.
[6] Saprophytes are the organisms which depend for food on -
A.
living plants
B.
living animals
C.
dead and decaying material
D.
inorganic chemical compounds
Ans:
dead and decaying material
Explanation :
Saprophytes are the organisms which depend for food on dead and decaying material.
[7] Iodine solution is used to test the presence of -
A.
Sugar
B.
Proteins
C.
Starch
D.
Fats
Ans:
Starch
Explanation :
Using iodine to test for the presence of starch is a common experiment. A solution of iodine (I2) and potassium iodide (KI) in water has a light orange-brown color. If it is added to a sample that contains starch, such as the bread pictured above, the color changes to a deep blue.
[8] Production of alcohol from organic compounds by microorganisms is known as -
A.
Combustion
B.
Fermentation
C.
Anaerobic respiration
D.
Aerobic respiration
Ans:
Anaerobic respiration
Explanation :
Fermentation is the decomposition of organic compounds into simpler compounds, which occurs when the right microorganisms are present along with the right conditions for their growth. All living organisms produce organic compounds.
[9] Odontokgy is the branch of science which deals with the study of -
A.
Teeth
B.
Ontogeny
C.
Bone
D.
Ageing
Ans:
Teeth
Explanation :
Odontokgy: the science dealing with the study of the teeth and their surrounding tissues and with the prevention and cure of their diseases.
[10] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Bacteria are the most abundant organisms which play important role in the decomposition of organic matter. Majority of bacteria involved in decomposition of organic matter are heterotrophs and autotrophs are least in proportion which are not directly involved in organic matter decomposition.
[11] Greater population can be supported on the earth only if we eat more -
A.
mutton
B.
eggs
C.
plant products
D.
beef
Ans:
plant products
Explanation :
One way of analyzing carrying capacity of the earth is to calculate its net primary productivity (NPP). This is the total amount of solar energy converted into biochemical energy through plant photosynthesis, minus the energy needed by those plants for their own life processes. It represents the total food resource on earth. In the food chain, meat products stay at the top. Even at the current levels where deforestation and other forms of destruction of vegetation has been rampant, plant products can sustain an extended population base.
[12] The longest part of the alimentary canal is the -
A.
Small Intestine
B.
large Intestine
C.
Oesophagus
D.
Both (1) and (3)
Ans:
Small Intestine
Explanation :
The food enters the small intestine from the stomach. This is the longest part of the alimentary canal and is fit into a compact space because of extensive coiling.
[13] Which blood group is universal donor?
A.
O+
B.
O-
C.
AB+
D.
AB-
Ans:
O-
Explanation :
Universal donor is a person who is type O in the ABO blood group system and negative for gen and can donate blood to all recipients.
[14] Archaeopteryx had the following reptilian characters -
A.
Teeth on jaw, tail, beak
B.
Clawed wings, teeth on jaw, tail
C.
Clawed wings, scales, feathers
D.
Teeth on jaw, feathers, tail
Ans:
Clawed wings, teeth on jaw, tail
Explanation :
Archaeopteryx, sometimes referred to by its German name Urvogel, is a genus of early bird that is transitional between feathered dinosaurs and modern birds. It shares the following features with the deirionychosaurs: jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw") , feathers (which also suggest horneothermy), and various skeletal features.
[15] Which of the following vertebrates lack exoskeleton?
A.
Amphibia
B.
Mammalia
C.
Avis
D.
Chondrichthyes
Ans:
Chondrichthyes
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
Danish botanist Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity. He also made the distinction between the outward appearance of an individual (phenotype) and its genetic traits (genotype).
[2] The term ‘genetics’ was coined by -
A.
Morgan
B.
Mendel
C.
Bateson
D.
Johannsen
Ans:
Bateson
Explanation :
Danish botanist Wilhelm Johansen coined the term 'gene'. The term 'genetics' was coined by Bateson.
[3] The maximum biological damage is produced by -
A.
X rays
B.
gamma rays
C.
beta rays
D.
alpha rays
Ans:
gamma rays
Explanation :
Gamma radiation, also known as gamma rays, is electromagnetic radiation of high frequency and therefore high energy. Gamma rays are ionizing radiation and are thus biologically hazardous.
[4] Which protein - sugar pair is present in milk?
A.
Casein, Sucrose
B.
Casein, Lactose
C.
Fenitin, Maltose
D.
Albumin, Glucose
Ans:
Casein, Lactose
Explanation :
Casein-Lactose protein-sugar pair is present in milk. Normal bovine milk contains 30-35 grams of protein per litre of which about 80 percent is arranged in casein micelles.
[5] Who discovered that Malaria was caused by female Anopheles?
A.
Edward Jenner
B.
Louis Pasteur
C.
Robert Koch
D.
Ronald Ross
Ans:
Ronald Ross
Explanation :
Edward Jenner of Britain discovered vaccination in 1796. Louis Pasteur of France discovered Rabies vaccine in 1860. Robert Koch of Germany discovered Cholera, TB germs in 1877. Sir Ronald Ross was a British Physician and entomologist, noted for identifying the links between mosquitoes and malaria. He was born in India in 1857 at Almora.
[6] Saprophytes are the organisms which depend for food on -
A.
living plants
B.
living animals
C.
dead and decaying material
D.
inorganic chemical compounds
Ans:
dead and decaying material
Explanation :
Saprophytes are the organisms which depend for food on dead and decaying material.
[7] Iodine solution is used to test the presence of -
A.
Sugar
B.
Proteins
C.
Starch
D.
Fats
Ans:
Starch
Explanation :
Using iodine to test for the presence of starch is a common experiment. A solution of iodine (I2) and potassium iodide (KI) in water has a light orange-brown color. If it is added to a sample that contains starch, such as the bread pictured above, the color changes to a deep blue.
[8] Production of alcohol from organic compounds by microorganisms is known as -
A.
Combustion
B.
Fermentation
C.
Anaerobic respiration
D.
Aerobic respiration
Ans:
Anaerobic respiration
Explanation :
Fermentation is the decomposition of organic compounds into simpler compounds, which occurs when the right microorganisms are present along with the right conditions for their growth. All living organisms produce organic compounds.
[9] Odontokgy is the branch of science which deals with the study of -
A.
Teeth
B.
Ontogeny
C.
Bone
D.
Ageing
Ans:
Teeth
Explanation :
Odontokgy: the science dealing with the study of the teeth and their surrounding tissues and with the prevention and cure of their diseases.
[10] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Bacteria are the most abundant organisms which play important role in the decomposition of organic matter. Majority of bacteria involved in decomposition of organic matter are heterotrophs and autotrophs are least in proportion which are not directly involved in organic matter decomposition.
[11] Greater population can be supported on the earth only if we eat more -
A.
mutton
B.
eggs
C.
plant products
D.
beef
Ans:
plant products
Explanation :
One way of analyzing carrying capacity of the earth is to calculate its net primary productivity (NPP). This is the total amount of solar energy converted into biochemical energy through plant photosynthesis, minus the energy needed by those plants for their own life processes. It represents the total food resource on earth. In the food chain, meat products stay at the top. Even at the current levels where deforestation and other forms of destruction of vegetation has been rampant, plant products can sustain an extended population base.
[12] The longest part of the alimentary canal is the -
A.
Small Intestine
B.
large Intestine
C.
Oesophagus
D.
Both (1) and (3)
Ans:
Small Intestine
Explanation :
The food enters the small intestine from the stomach. This is the longest part of the alimentary canal and is fit into a compact space because of extensive coiling.
[13] Which blood group is universal donor?
A.
O+
B.
O-
C.
AB+
D.
AB-
Ans:
O-
Explanation :
Universal donor is a person who is type O in the ABO blood group system and negative for gen and can donate blood to all recipients.
[14] Archaeopteryx had the following reptilian characters -
A.
Teeth on jaw, tail, beak
B.
Clawed wings, teeth on jaw, tail
C.
Clawed wings, scales, feathers
D.
Teeth on jaw, feathers, tail
Ans:
Clawed wings, teeth on jaw, tail
Explanation :
Archaeopteryx, sometimes referred to by its German name Urvogel, is a genus of early bird that is transitional between feathered dinosaurs and modern birds. It shares the following features with the deirionychosaurs: jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw") , feathers (which also suggest horneothermy), and various skeletal features.
[15] Which of the following vertebrates lack exoskeleton?
A.
Amphibia
B.
Mammalia
C.
Avis
D.
Chondrichthyes
Ans:
Chondrichthyes
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
Gamma radiation, also known as gamma rays, is electromagnetic radiation of high frequency and therefore high energy. Gamma rays are ionizing radiation and are thus biologically hazardous.
[4] Which protein - sugar pair is present in milk?
A.
Casein, Sucrose
B.
Casein, Lactose
C.
Fenitin, Maltose
D.
Albumin, Glucose
Ans:
Casein, Lactose
Explanation :
Casein-Lactose protein-sugar pair is present in milk. Normal bovine milk contains 30-35 grams of protein per litre of which about 80 percent is arranged in casein micelles.
[5] Who discovered that Malaria was caused by female Anopheles?
A.
Edward Jenner
B.
Louis Pasteur
C.
Robert Koch
D.
Ronald Ross
Ans:
Ronald Ross
Explanation :
Edward Jenner of Britain discovered vaccination in 1796. Louis Pasteur of France discovered Rabies vaccine in 1860. Robert Koch of Germany discovered Cholera, TB germs in 1877. Sir Ronald Ross was a British Physician and entomologist, noted for identifying the links between mosquitoes and malaria. He was born in India in 1857 at Almora.
[6] Saprophytes are the organisms which depend for food on -
A.
living plants
B.
living animals
C.
dead and decaying material
D.
inorganic chemical compounds
Ans:
dead and decaying material
Explanation :
Saprophytes are the organisms which depend for food on dead and decaying material.
[7] Iodine solution is used to test the presence of -
A.
Sugar
B.
Proteins
C.
Starch
D.
Fats
Ans:
Starch
Explanation :
Using iodine to test for the presence of starch is a common experiment. A solution of iodine (I2) and potassium iodide (KI) in water has a light orange-brown color. If it is added to a sample that contains starch, such as the bread pictured above, the color changes to a deep blue.
[8] Production of alcohol from organic compounds by microorganisms is known as -
A.
Combustion
B.
Fermentation
C.
Anaerobic respiration
D.
Aerobic respiration
Ans:
Anaerobic respiration
Explanation :
Fermentation is the decomposition of organic compounds into simpler compounds, which occurs when the right microorganisms are present along with the right conditions for their growth. All living organisms produce organic compounds.
[9] Odontokgy is the branch of science which deals with the study of -
A.
Teeth
B.
Ontogeny
C.
Bone
D.
Ageing
Ans:
Teeth
Explanation :
Odontokgy: the science dealing with the study of the teeth and their surrounding tissues and with the prevention and cure of their diseases.
[10] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Bacteria are the most abundant organisms which play important role in the decomposition of organic matter. Majority of bacteria involved in decomposition of organic matter are heterotrophs and autotrophs are least in proportion which are not directly involved in organic matter decomposition.
[11] Greater population can be supported on the earth only if we eat more -
A.
mutton
B.
eggs
C.
plant products
D.
beef
Ans:
plant products
Explanation :
One way of analyzing carrying capacity of the earth is to calculate its net primary productivity (NPP). This is the total amount of solar energy converted into biochemical energy through plant photosynthesis, minus the energy needed by those plants for their own life processes. It represents the total food resource on earth. In the food chain, meat products stay at the top. Even at the current levels where deforestation and other forms of destruction of vegetation has been rampant, plant products can sustain an extended population base.
[12] The longest part of the alimentary canal is the -
A.
Small Intestine
B.
large Intestine
C.
Oesophagus
D.
Both (1) and (3)
Ans:
Small Intestine
Explanation :
The food enters the small intestine from the stomach. This is the longest part of the alimentary canal and is fit into a compact space because of extensive coiling.
[13] Which blood group is universal donor?
A.
O+
B.
O-
C.
AB+
D.
AB-
Ans:
O-
Explanation :
Universal donor is a person who is type O in the ABO blood group system and negative for gen and can donate blood to all recipients.
[14] Archaeopteryx had the following reptilian characters -
A.
Teeth on jaw, tail, beak
B.
Clawed wings, teeth on jaw, tail
C.
Clawed wings, scales, feathers
D.
Teeth on jaw, feathers, tail
Ans:
Clawed wings, teeth on jaw, tail
Explanation :
Archaeopteryx, sometimes referred to by its German name Urvogel, is a genus of early bird that is transitional between feathered dinosaurs and modern birds. It shares the following features with the deirionychosaurs: jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw") , feathers (which also suggest horneothermy), and various skeletal features.
[15] Which of the following vertebrates lack exoskeleton?
A.
Amphibia
B.
Mammalia
C.
Avis
D.
Chondrichthyes
Ans:
Chondrichthyes
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
Edward Jenner of Britain discovered vaccination in 1796. Louis Pasteur of France discovered Rabies vaccine in 1860. Robert Koch of Germany discovered Cholera, TB germs in 1877. Sir Ronald Ross was a British Physician and entomologist, noted for identifying the links between mosquitoes and malaria. He was born in India in 1857 at Almora.
[6] Saprophytes are the organisms which depend for food on -
A.
living plants
B.
living animals
C.
dead and decaying material
D.
inorganic chemical compounds
Ans:
dead and decaying material
Explanation :
Saprophytes are the organisms which depend for food on dead and decaying material.
[7] Iodine solution is used to test the presence of -
A.
Sugar
B.
Proteins
C.
Starch
D.
Fats
Ans:
Starch
Explanation :
Using iodine to test for the presence of starch is a common experiment. A solution of iodine (I2) and potassium iodide (KI) in water has a light orange-brown color. If it is added to a sample that contains starch, such as the bread pictured above, the color changes to a deep blue.
[8] Production of alcohol from organic compounds by microorganisms is known as -
A.
Combustion
B.
Fermentation
C.
Anaerobic respiration
D.
Aerobic respiration
Ans:
Anaerobic respiration
Explanation :
Fermentation is the decomposition of organic compounds into simpler compounds, which occurs when the right microorganisms are present along with the right conditions for their growth. All living organisms produce organic compounds.
[9] Odontokgy is the branch of science which deals with the study of -
A.
Teeth
B.
Ontogeny
C.
Bone
D.
Ageing
Ans:
Teeth
Explanation :
Odontokgy: the science dealing with the study of the teeth and their surrounding tissues and with the prevention and cure of their diseases.
[10] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Bacteria are the most abundant organisms which play important role in the decomposition of organic matter. Majority of bacteria involved in decomposition of organic matter are heterotrophs and autotrophs are least in proportion which are not directly involved in organic matter decomposition.
[11] Greater population can be supported on the earth only if we eat more -
A.
mutton
B.
eggs
C.
plant products
D.
beef
Ans:
plant products
Explanation :
One way of analyzing carrying capacity of the earth is to calculate its net primary productivity (NPP). This is the total amount of solar energy converted into biochemical energy through plant photosynthesis, minus the energy needed by those plants for their own life processes. It represents the total food resource on earth. In the food chain, meat products stay at the top. Even at the current levels where deforestation and other forms of destruction of vegetation has been rampant, plant products can sustain an extended population base.
[12] The longest part of the alimentary canal is the -
A.
Small Intestine
B.
large Intestine
C.
Oesophagus
D.
Both (1) and (3)
Ans:
Small Intestine
Explanation :
The food enters the small intestine from the stomach. This is the longest part of the alimentary canal and is fit into a compact space because of extensive coiling.
[13] Which blood group is universal donor?
A.
O+
B.
O-
C.
AB+
D.
AB-
Ans:
O-
Explanation :
Universal donor is a person who is type O in the ABO blood group system and negative for gen and can donate blood to all recipients.
[14] Archaeopteryx had the following reptilian characters -
A.
Teeth on jaw, tail, beak
B.
Clawed wings, teeth on jaw, tail
C.
Clawed wings, scales, feathers
D.
Teeth on jaw, feathers, tail
Ans:
Clawed wings, teeth on jaw, tail
Explanation :
Archaeopteryx, sometimes referred to by its German name Urvogel, is a genus of early bird that is transitional between feathered dinosaurs and modern birds. It shares the following features with the deirionychosaurs: jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw") , feathers (which also suggest horneothermy), and various skeletal features.
[15] Which of the following vertebrates lack exoskeleton?
A.
Amphibia
B.
Mammalia
C.
Avis
D.
Chondrichthyes
Ans:
Chondrichthyes
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
Using iodine to test for the presence of starch is a common experiment. A solution of iodine (I2) and potassium iodide (KI) in water has a light orange-brown color. If it is added to a sample that contains starch, such as the bread pictured above, the color changes to a deep blue.
[8] Production of alcohol from organic compounds by microorganisms is known as -
A.
Combustion
B.
Fermentation
C.
Anaerobic respiration
D.
Aerobic respiration
Ans:
Anaerobic respiration
Explanation :
Fermentation is the decomposition of organic compounds into simpler compounds, which occurs when the right microorganisms are present along with the right conditions for their growth. All living organisms produce organic compounds.
[9] Odontokgy is the branch of science which deals with the study of -
A.
Teeth
B.
Ontogeny
C.
Bone
D.
Ageing
Ans:
Teeth
Explanation :
Odontokgy: the science dealing with the study of the teeth and their surrounding tissues and with the prevention and cure of their diseases.
[10] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Bacteria are the most abundant organisms which play important role in the decomposition of organic matter. Majority of bacteria involved in decomposition of organic matter are heterotrophs and autotrophs are least in proportion which are not directly involved in organic matter decomposition.
[11] Greater population can be supported on the earth only if we eat more -
A.
mutton
B.
eggs
C.
plant products
D.
beef
Ans:
plant products
Explanation :
One way of analyzing carrying capacity of the earth is to calculate its net primary productivity (NPP). This is the total amount of solar energy converted into biochemical energy through plant photosynthesis, minus the energy needed by those plants for their own life processes. It represents the total food resource on earth. In the food chain, meat products stay at the top. Even at the current levels where deforestation and other forms of destruction of vegetation has been rampant, plant products can sustain an extended population base.
[12] The longest part of the alimentary canal is the -
A.
Small Intestine
B.
large Intestine
C.
Oesophagus
D.
Both (1) and (3)
Ans:
Small Intestine
Explanation :
The food enters the small intestine from the stomach. This is the longest part of the alimentary canal and is fit into a compact space because of extensive coiling.
[13] Which blood group is universal donor?
A.
O+
B.
O-
C.
AB+
D.
AB-
Ans:
O-
Explanation :
Universal donor is a person who is type O in the ABO blood group system and negative for gen and can donate blood to all recipients.
[14] Archaeopteryx had the following reptilian characters -
A.
Teeth on jaw, tail, beak
B.
Clawed wings, teeth on jaw, tail
C.
Clawed wings, scales, feathers
D.
Teeth on jaw, feathers, tail
Ans:
Clawed wings, teeth on jaw, tail
Explanation :
Archaeopteryx, sometimes referred to by its German name Urvogel, is a genus of early bird that is transitional between feathered dinosaurs and modern birds. It shares the following features with the deirionychosaurs: jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw") , feathers (which also suggest horneothermy), and various skeletal features.
[15] Which of the following vertebrates lack exoskeleton?
A.
Amphibia
B.
Mammalia
C.
Avis
D.
Chondrichthyes
Ans:
Chondrichthyes
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
Odontokgy: the science dealing with the study of the teeth and their surrounding tissues and with the prevention and cure of their diseases.
[10] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Bacteria are the most abundant organisms which play important role in the decomposition of organic matter. Majority of bacteria involved in decomposition of organic matter are heterotrophs and autotrophs are least in proportion which are not directly involved in organic matter decomposition.
[11] Greater population can be supported on the earth only if we eat more -
A.
mutton
B.
eggs
C.
plant products
D.
beef
Ans:
plant products
Explanation :
One way of analyzing carrying capacity of the earth is to calculate its net primary productivity (NPP). This is the total amount of solar energy converted into biochemical energy through plant photosynthesis, minus the energy needed by those plants for their own life processes. It represents the total food resource on earth. In the food chain, meat products stay at the top. Even at the current levels where deforestation and other forms of destruction of vegetation has been rampant, plant products can sustain an extended population base.
[12] The longest part of the alimentary canal is the -
A.
Small Intestine
B.
large Intestine
C.
Oesophagus
D.
Both (1) and (3)
Ans:
Small Intestine
Explanation :
The food enters the small intestine from the stomach. This is the longest part of the alimentary canal and is fit into a compact space because of extensive coiling.
[13] Which blood group is universal donor?
A.
O+
B.
O-
C.
AB+
D.
AB-
Ans:
O-
Explanation :
Universal donor is a person who is type O in the ABO blood group system and negative for gen and can donate blood to all recipients.
[14] Archaeopteryx had the following reptilian characters -
A.
Teeth on jaw, tail, beak
B.
Clawed wings, teeth on jaw, tail
C.
Clawed wings, scales, feathers
D.
Teeth on jaw, feathers, tail
Ans:
Clawed wings, teeth on jaw, tail
Explanation :
Archaeopteryx, sometimes referred to by its German name Urvogel, is a genus of early bird that is transitional between feathered dinosaurs and modern birds. It shares the following features with the deirionychosaurs: jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw") , feathers (which also suggest horneothermy), and various skeletal features.
[15] Which of the following vertebrates lack exoskeleton?
A.
Amphibia
B.
Mammalia
C.
Avis
D.
Chondrichthyes
Ans:
Chondrichthyes
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
One way of analyzing carrying capacity of the earth is to calculate its net primary productivity (NPP). This is the total amount of solar energy converted into biochemical energy through plant photosynthesis, minus the energy needed by those plants for their own life processes. It represents the total food resource on earth. In the food chain, meat products stay at the top. Even at the current levels where deforestation and other forms of destruction of vegetation has been rampant, plant products can sustain an extended population base.
[12] The longest part of the alimentary canal is the -
A.
Small Intestine
B.
large Intestine
C.
Oesophagus
D.
Both (1) and (3)
Ans:
Small Intestine
Explanation :
The food enters the small intestine from the stomach. This is the longest part of the alimentary canal and is fit into a compact space because of extensive coiling.
[13] Which blood group is universal donor?
A.
O+
B.
O-
C.
AB+
D.
AB-
Ans:
O-
Explanation :
Universal donor is a person who is type O in the ABO blood group system and negative for gen and can donate blood to all recipients.
[14] Archaeopteryx had the following reptilian characters -
A.
Teeth on jaw, tail, beak
B.
Clawed wings, teeth on jaw, tail
C.
Clawed wings, scales, feathers
D.
Teeth on jaw, feathers, tail
Ans:
Clawed wings, teeth on jaw, tail
Explanation :
Archaeopteryx, sometimes referred to by its German name Urvogel, is a genus of early bird that is transitional between feathered dinosaurs and modern birds. It shares the following features with the deirionychosaurs: jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw") , feathers (which also suggest horneothermy), and various skeletal features.
[15] Which of the following vertebrates lack exoskeleton?
A.
Amphibia
B.
Mammalia
C.
Avis
D.
Chondrichthyes
Ans:
Chondrichthyes
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
Universal donor is a person who is type O in the ABO blood group system and negative for gen and can donate blood to all recipients.
[14] Archaeopteryx had the following reptilian characters -
A.
Teeth on jaw, tail, beak
B.
Clawed wings, teeth on jaw, tail
C.
Clawed wings, scales, feathers
D.
Teeth on jaw, feathers, tail
Ans:
Clawed wings, teeth on jaw, tail
Explanation :
Archaeopteryx, sometimes referred to by its German name Urvogel, is a genus of early bird that is transitional between feathered dinosaurs and modern birds. It shares the following features with the deirionychosaurs: jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw") , feathers (which also suggest horneothermy), and various skeletal features.
[15] Which of the following vertebrates lack exoskeleton?
A.
Amphibia
B.
Mammalia
C.
Avis
D.
Chondrichthyes
Ans:
Chondrichthyes
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
[16] Which cells in our body have the least regenerative power?
A.
Brain cells
B.
Muscle cells
C.
Bone cells
D.
Liver cells
Ans:
Brain cells
Explanation :
Brain cells do not regenerate. Once lost, they do not come back. Research from Karolinska Institute in Sweden haves shown that the nerve cells of the brain remain the same throughout a person's life.
[17] A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A.
From brown to blue-black
B.
From brown to orange-red
C.
From blue to pink
D.
From pink to blue-green
Ans:
From brown to blue-black
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of glucose. Long linear chains are amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a hollow core. Certain molecules including fatty acids and iodine can lodge inside the core as already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blue-black colour.
[18] Which animal may suffer from foot and mouth disease?
A.
Cattle
B.
Cattle and sheep
C.
Cattle and pigs
D.
Cattle, sheep and pigs
Ans:
Cattle and sheep
Explanation :
Foot-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness. Susceptible animals include cattle, water buffalo, sheep, goats, pigs, antelope, deer, and bison.
[19] What does enamel cover?
A.
Crown of the tooth
B.
Dentin on all sides
C.
Cementum
D.
Cementum and partly dentin
Ans:
Crown of the tooth
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
The basic unit of enamel is called an enamel rod which is a tightly packed mass of hydroxyapatite crystals in an organized pattern. In cross section, it is best compared to a keyhole, with the top, or head, oriented toward the crown of the tooth, and the bottom, or tail, oriented toward the root of the tooth.
[20] Blood pressure is the pressure exerted by blood on the walls of -
A.
Heart
B.
Veins
C.
Arteries
D.
Capillaries
Ans:
Arteries
Explanation :
Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. It usually refers to the arterial pressure of the systemic circulation. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
[21] Which one of the Endocrine glands is known as master gland?
A.
Pituitary
B.
Adrenal
C.
Thyroid
D.
Parathyroid
Ans:
Pituitary
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
The pituitary is sometimes referred to as the "master gland" as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[22] The biological death of a patient means the death of tissues of the -
A.
kidney
B.
heart
C.
brain
D.
lungs
Ans:
brain
Explanation :
Biological death occurs when brain cells start to die due to lack of oxygen. Biological death follows clinical death (when a person stops breathing). Without oxygen brain damage can occur within minutes. 4-6 minutes of oxygen deprivation can cause minor brain damage. 6-10 minutes of oxygen deprivation will cause brain damage. After 10 minutes of no oxygen irreversible brain damage occurs.
[23] Blood pressure is high in the -
A.
Ventricles
B.
Arteries
C.
Veins
D.
Auricles
Ans:
Arteries
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[24] Which drug is used to cure Hypertension?
A.
Risedronate
B.
Diazepam
C.
Folic Acid
D.
Hydralazine
Ans:
Hydralazine
Explanation :
Hydralazine, sold under the brand name Apresoline among others, is a medication used to treat high blood pressure and heart failure.
[25] The method used to obtain alcohol from molasses is called -
A.
distillation
B.
hydrolysis
C.
fermentation
D.
oxidation
Ans:
fermentation
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.
Explanation :
On industrial scale, ethanol can be prepared by the fermentation of molasses. Molasses is the mother liquor left after the crystallization of sugarcane juice. It is a dark colored viscous liquid. Molasses contains about 60% fermentable sugar.