501) Cellulose is the chief constituent of -
Answer
cell wall
502) Hypoglycemia refers to -
Answer
low sugar level in blood
503) The primary source of carbohydrates are -
Answer
Plants
504) The vitamin that is most readily manufactured in our bodies is -
Answer
vitamin D
505) Aspartame is the name of a product used by diabetic patients as a sweetening agent. It belongs to the class of —
Answer
Peptides
506) The animal that do not develop hypertension in spite of heavy intake of salt is:
Answer
Camel
507) Activity of an enzyme can be modulated by change of -
Answer
pH
508) Proteins are digested by -
Answer
Proteases
509) Jaundice is a disease which affects -
Answer
Liver
510) Cholesterol is absent in -
Answer
Groundnut oil
511) The pollutants which move downward with percolating ground water are called -
Answer
Leachates
512) Lungs are located in the -
Answer
pleural cavity
513) A seed can germinate in the absence of -
Answer
adequate light
514) DNA contains -
Answer
Pentose sugar
515) Who coined the term gene?
Answer
Johannsen
516) The term ‘genetics’ was coined by -
Answer
Bateson
517) The maximum biological damage is produced by -
Answer
gamma rays
518) Which protein - sugar pair is present in milk?
Answer
Casein, Lactose
519) Who discovered that Malaria was caused by female Anopheles?
Answer
Ronald Ross
520) Saprophytes are the organisms which depend for food on -
Answer
dead and decaying material
521) Iodine solution is used to test the presence of -
Answer
Starch
522) Production of alcohol from organic compounds by microorganisms is known as -
Answer
Anaerobic respiration
523) Odontokgy is the branch of science which deals with the study of -
Answer
Teeth
524) Biodegradable wastes can usually be converted into useful substances with the help of -
Answer
Bacteria
525) Greater population can be supported on the earth only if we eat more -
Answer
plant products
526) The longest part of the alimentary canal is the -
Answer
Small Intestine
527) Which blood group is universal donor?
Answer
O-
528) Which cells in our body have the least regenerative power?
Answer
Brain cells
529) 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?
Answer
From brown to blue-black
530) Which animal may suffer from foot and mouth disease?
Answer
Cattle and sheep
531) What does enamel cover?
Answer
Crown of the tooth
532) Blood pressure is the pressure exerted by blood on the walls of -
Answer
Arteries
533) Which one of the Endocrine glands is known as master gland?
Answer
Pituitary
534) The biological death of a patient means the death of tissues of the -
Answer
brain
535) Blood pressure is high in the -
Answer
Arteries
536) Which drug is used to cure Hypertension?
Answer
Hydralazine
537) The method used to obtain alcohol from molasses is called -
Answer
fermentation
538) Which part of saffron plant is used to obtain the spice 'saffron'?
Answer
Dry stigma
539) Photosynthesis is -
Answer
An endothermic process
540) Rabies is a -
Answer
viral disease
541) Estrogen and Progesterone control and stimulate the growth in:
Answer
Mammary Gland
542) Which of these is produced by a mould?
Answer
Penicillin
543) Bile is produced by the -
Answer
Liver
544) Which part of the nervous system controls the activities of internal organs?
Answer
Medulla Oblongata
545) The antibiotic Ampicillin is -
Answer
obtained from a bacterium
546) How many valves does a human heart have?
Answer
Four
547) The cells which are responsible for the production of antibodies are -
Answer
lymphocytes
548) Functional unit of 'Kidney' -
Answer
Nephron
549) An invertebrate does not have -
Answer
Notochord
550) All are protozoan diseases except -
Answer
Elephantiasis
551) Transfer of genetic information from one generation to the next generation is by -
Answer
DNA
552) An eardrum is absent in -
Answer
snakes
553) Animals adapted to life in air are called :
Answer
arboreal
554) Plants used for the production of biofuel are:
Answer
Jatropa curcus
555) _, found in blood, is responsible for oxygen transportation.
Answer
RBC
556) Transcription means the synthesis of -
Answer
DNA
557) Approximate life span of parrot is -
Answer
20 years
558) Tendons and ligaments are -
Answer
Connective tissue
559) A plant with 30 cm or more circumference from human chest height is identified as -
Answer
Medicinal herbs
560) The skin biting mosquito has legs as locomotory organ which are -
Answer
Three pairs
561) Hydrochloric acid is secreted by the cells lining the -
Answer
Stomach
562) Emulsification is -
Answer
breaking fats into small globules
563) The smallest size of a cell that can be seen with naked eye is:
Answer
100 micron
564) Cosmetic powder is prepared from -
Answer
Talc
565) Rutherford's scattering experiment proved the presence of -
Answer
nucleus in atoms
566) Excess amount of absorbed water by plants is liberated out by -
Answer
Transpiration
567) The life span of RBC of man is -
Answer
150 days
568) The communication between the central nervous system and the other parts of the body is facilitated by -
Answer
Peripheral Nervous System
569) From the bark of which plant is quinine extracted?
Answer
Cinchona
570) Hypertension is the term used for -
Answer
increase in blood pressure
571) The source of the enzyme, diastase is -
Answer
salivary gland
572) Mycoplasma is associated with a disease that affects the organs of -
Answer
respiration
573) In how many parts is the human brain divided?
Answer
3
574) The total number of bones in the body of an adult human is .
Answer
206
575) The floral part that produces pollen grains is -
Answer
Anther
576) Which of these fruits develop from an inflorescence?
Answer
Pineapple
577) When day light hours are increased, the rate of photosynthesis:
Answer
Remains same
578) Persons who are colour-blind cannot distinguish between -
Answer
red and green
579) The acid present in gastric juice is –
Answer
Hydrochloric
580) Housefly spreads -
Answer
Typhoid
581) Mendel's principles of inheritance are based on -
Answer
Sexual reproduction
582) Viruses are made up of -
Answer
Nucleic and protein
583) A person having AB-group of blood can donate blood to a person having -
Answer
AB-group
584) The contractile proteins in a muscle are -
Answer
Actin and Myosin
585) Acute lead poisoning is also known as -
Answer
Plumbism
586) The main thinking part of the brain is the .
Answer
Fore brain
587) Which organ is the alternate term for womb?
Answer
Uterus
588) In onion the edible part is -
Answer
Leaf
589) What is a sponge?
Answer
an animal
590) Types of vertebrate animals which creep and crawl are called -
Answer
reptilians
591) The deficiency of Vitamin A causes -
Answer
Night blindness
592) Which drug is used to cure Osteoporosis?
Answer
Risedronate
593) The red, orange and yellow colours of leaf is due to -
Answer
Carotenold
594) Which organ of the body produces the fluid known as bile?
Answer
Liver
595) Estrogen and progesterone control and stimulate the growth of -
Answer
mammary gland
596) Taxonomy is a science that deals with -
Answer
Classification
597) The outer skin most of the crustaceans are made up of a carbohydrate. This carbohydrate is -
Answer
chitin
598) A molecule in plants comparable to haemoglobin in animals is -
Answer
Chlorophyll
599) An Antigen is -
Answer
the stimulus for Antibody formation
600) Blood does not coagulate inside the body due to the presence of -
Answer
Heparin
601) Leech is an ectoparasite on cattle, which is -
Answer
Herbivorous
602) Blood pressure may be increased by the excessive secretion of -
Answer
Thyroxine
603) exhaled from the polluted atmosphere is often filtered out during the process of -
Answer
Sneezing
604) Crude oil is sometimes termed sweet because it is -
Answer
mildly sweet due to low sulphur content
605) Master copy of genetic information is -
Answer
DNA
606) In coriander, the useful parts are -
Answer
leaves & dried fruits
607) Bio - diesel is mostly produced by -
Answer
Euphorbiaceae
608) Mushroom cultivation is not useful in -
Answer
Biological control of crop diseases
609) The Drone in honey-bee are -
Answer
Fertile male
610) Blood clotting will not occur in the absence of -
Answer
Calcium
611) 'Antibodies', which protect our body from infections, are which type of compounds?
Answer
Proteins
612) Osteocytes are found in -
Answer
Bone
613) The largest mixed gland of human body is -
Answer
Pancreas
614) Which acid is present in the stomach of humans?
Answer
hydrochloric acid
615) Study of Crop production is –
Answer
Agronomy
616) Reflex actions are controlled by -
Answer
the Spinal Chord
617) The floral part that receives pollen grains during pollination is -
Answer
stigma
618) A warm-blooded animal is -
Answer
Bat
619) The membrane covering the lungs is a -
Answer
pleura
620) Ascent of sap in plants takes place through -
Answer
Xylem
621) A plant with fibrous root system is -
Answer
Wheat
622) Haemoglobin is a -
Answer
protein
623) Why death of fish is more common during summer than in winter? It is because of -
Answer
depletion of oxygen
624) Normal blood pressure of man is -
Answer
80/120 mm Hg
625) The form of carbohydrate which is synthesized in plants is -
Answer
Glucose
626) From which part of a plant is turmeric obtained?
Answer
Stem
627) Genes, the hereditary units, are located in the -
Answer
chromosomes
628) Which of these is a modified underground stem?
Answer
Potato
629) The food conducting tissue of a plant is -
Answer
Phloem
630) Opium is a plant product obtained from -
Answer
dried latex
631) Drying oils contain a fairly large proportion of -
Answer
unsaturated fatty acids
632) Crabs belongs to the phylum -
Answer
Arthropoda
633) Clove is a -
Answer
Dried flower bud
634) Dormancy period of animals during winter season is called -
Answer
Hibernation
635) Breeding and management of bees is known as -
Answer
Apiculture
636) In cauliflower plant the useful part is :
Answer
Young inflorescence
637) A man suffering from diabetes mellitus drinks water more frequently as he has to eliminate from the blood extra -
Answer
glucose
638) Jaws are absent in -
Answer
Protochordates
639) Which enzyme is present in all members of the animal kingdom except Protozoa?
Answer
Amylase
640) The ambient air quality standard (24 hours average) for lead in industrial area is -
Answer
1.5 pg/m3
641) Thinner particles responsible for deteriorating the air quality resulting in the damage of vital body organs are referred as PM:
Answer
2.5
642) Sams crane is the state bird of -
Answer
Uttar Pradesh
643) How many chambers does a mammalian heart have?
Answer
4
644) The ambient air is stable when the ambient lapse rate is -
Answer
Sub-adiabatic
645) In dicots the pollen-grains possess :
Answer
three germ pores
646) Acceptable "Noise Pollution Level" in India range between:
Answer
40 - 45 db
647) An example of protein which acts as a hormone is :
Answer
Oxytocin
648) The primary producer in an ecosystem are;
Answer
Plants
649) White Revolution' is related to -
Answer
Milk production
650) Metal present in blood is -
Answer
Iron
651) An adult human normally has -
Answer
12 molar teeth
652) Chicken pox is caused by -
Answer
Virus
653) Aquatic animal with the most developed intelligence is -
Answer
Shark
654) The blood vessel which carries oxygenated blood to the liver is -
Answer
Hepatic Artery
655) Bile is stored in the -
Answer
Gall - bladder
656) The saliva secreted in the mouth digests -
Answer
Starch
657) The number of chromosomes present in the somatic cell of the human cell is -
Answer
46
658) Ecology deals with:
Answer
Relation between organisms and their environment
659) What is the total number of bones that are present in human body?
Answer
206
660) IUCN categorized major threatened species under :
Answer
nine classes
661) Minamata disease was caused by:
Answer
Mercury
662) Chromosomes are made up of -
Answer
DNA and Protein
663) The chemical which is used in art and craft and can cause anemia and leukemia is -
Answer
Benzene
664) Total number of muscles present in our body is -
Answer
656
665) Biodegradable wastes can usually be converted into useful substances with the help of:
Answer
bacteria
666) An ant can see the objects all around it due to the presence of -
Answer
Compound eyes
667) BCG vaccination is given at the age of -
Answer
Within 15 days
668) The Rotavirus vaccine ROTOVAC developed by Indian scientists cures which disease?
Answer
Diarrohea
669) Which base in place of thymine is present in RNA?
Answer
Uracil
670) Pick out the correct match:
Answer
Egg yolk - Protein and Fat
671) Respiration is regarded as a -
Answer
Catabolic Process
672) The structure which helps in the nutrition of the Embryo is -
Answer
Yolk sac
673) Hypothermia occurs due to loss of excessive heat from body due to sudden low body temperature in:
Answer
Human beings
674) The disease that has been eradicated from the world is:
Answer
Small pox
675) Protein part of enzyme is know as -
Answer
Apoenzyme
676) Time required for the organism to eliminate 50% the total body burden or tissue concentration of chemical is referred as -
Answer
Half-life period
677) The sum of genes in a population is called -
Answer
Gene pool
678) 'Plague' is caused by .
Answer
Bacteria
679) Growing more than one crop on a piece of land during the year is known as -
Answer
Multiple cropping
680) Immunisation is a phenomenon of formation of antibodies by using inactive -
Answer
Antigens
681) Symptoms of Jaundice occur mainly due to disorder and malfunction of -
Answer
Liver
682) Which of the plant products is used in leather industry?
Answer
Tannin
683) Cooking oil can be converted into vegetable ghee by the process of -
Answer
hydrogenation
684) Penicillin is isolated from :
Answer
Fungi
685) Insulin for Diabetes is invented by -
Answer
E.F. Banting
686) What is the term used for the process of pollination by birds?
Answer
Ornithophily
687) The trace metal present in insulin is -
Answer
zinc
688) Male mosquitoes -
Answer
Feed on plant juices
689) Where is the Pineal Gland situated?
Answer
in the Brain
690) In the human body, fats are stored in the -
Answer
Adipose tissue
691) Blood pressure is measured with:
Answer
Sphygmomanometer
692) The reagent used to test the presence of starch in leaves is -
Answer
Iodine solution
693) Malaria can be cured with a drug extracted from -
Answer
Cinchona tree
694) Blood does not clot in the blood vessels due to the presence of -
Answer
Heparin
695) The substance used to bring down body temperature in high fever, is -
Answer
Antipyretics
696) Which of these produces energy?
Answer
Carbohydrates
697) What vessel carries the venous blood to the lungs for oxygenation?
Answer
Pulmonary arteries
698) The main thinking part of the brain is -
Answer
forebrain
699) Enzymes are -
Answer
Proteins
700) The total number of bones in the human body is :
Answer
206
701) Bile is secreted by :
Answer
Liver
702) In onion the edible part is -
Answer
Leaf
703) The heat treatment applied to milk before distribution to stabilize and to remove disease causing bacteria is called as -
Answer
Pasteurisation
704) Bio-magnification implies -
Answer
Toxic matters are magnified
705) Haemophilia is a genetic disorder which leads to -
Answer
non-clotting of blood
706) Blood is a:
Answer
connective tissue
707) The natural disaster in which carbon-dioxide suddenly erupts from a deep lake water is known as .
Answer
Liminic
708) Conglobate gland is a leaf like structure found in -
Answer
Male Cockroach
709) In the resistance colour code, the fourth band signifies -
Answer
tolerance level
710) The curcumin is isolated from -
Answer
Turmeric
711) Teeth and Bones acquire strength and rigidity from -
Answer
Calcim
712) The hormone used as an oral contraceptive is -
Answer
Progesterone
713) Transboundary pollution (or) Acid rain is caused by -
Answer
Nitrogen oxide and sulphur dioxide
714) At which stage in its life cycle, does the silk worm yield the fibre of commerce?
Answer
Pupa
715) Maximum harm to a tree is caused by -
Answer
loss of all leaves
716) The humidity of air measured in percentage is called -
Answer
relative humidity
717) The term 'Green Revolution' was coined by -
Answer
William Gaud
718) Filaria is transmitted by -
Answer
Cuiex mosquito
719) Which is the only mammal that can fly?
Answer
Bat
720) Plants which flower only once in their lifetime are known as -
Answer
monocarpie
721) The larvae of cockroach is called -
Answer
Nymph
722) The Drone in honey-bee are -
Answer
Fertile male
723) Of which tissue nails, hoofs and horns are made of -
Answer
Keratin
724) Vector of Kala Azar is :
Answer
Sand fly
725) Name the vitamin not found in any animal food?
Answer
Vitamin C
726) The largest organ of human body is :
Answer
Liver
727) Fiber diet includes -
Answer
cellulose
728) Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
Answer
Stem bark
729) To carry out photosynthesis plants require -
Answer
Carbon-dioxide
730) The human heart is enclosed in the -
Answer
Pericardium
731) The human skeleton contains around -
Answer
206 bones
732) Heavy alcohol consuming people generally die of -
Answer
cirrhosis
733) Chocolates can be bad for health because of a high content of -
Answer
lead
734) Tuberculosis infection is by means of -
Answer
Mycobacterium tuberculosis
735) The abnormal constituent of urine is -
Answer
albumin
736) The radioactive Strontium-90 causes :
Answer
Skin cancer
737) What causes common cold?
Answer
Virus
738) The chief raw material used for manufacturing Rayon is :
Answer
Cellulose
739) Cadmium pollution is associated with -
Answer
Itai-itai
740) Haemoglobin has highest affinity for -
Answer
Oxygen
741) Which chromosomal combination is responsible for maleness in man?
Answer
XY
742) Which cells in our body have the least regenerative power?
Answer
Brain cells
743) The gas used for artificial ripening of green fruit is -
Answer
ethylene
744) The importance of perspiration is to -
Answer
Regulate body temperature
745) A disease caused by fungus is -
Answer
Ringworm
746) The organ which stores carbohydrates as glycogen in the human body is -
Answer
Liver
747) Haemoglobin is an important constituent of -
Answer
Red blood cells
748) Blood fails to clot white flowing in the blood vessel because of the presence of -
Answer
Hepatin
749) Commonest mammal is -
Answer
Man (Homo sapiens)
750) What is the impact of advancing glaciers on the rings of trees?
Answer
Their shape is distorted
751) The sweet taste of fruits is due to -
Answer
Fructose
752) Wings of a bird and an insect are -
Answer
Analogous organs
753) Primary source of vitamin-D for human beings is -
Answer
Sun
754) A mother of blood group O has a group O child. What could be the blood group of father of the child?
Answer
A or B or O
755) The type of tail found in Shark is -
Answer
Heterocercal
756) The Sigmoid Colon is part of -
Answer
Large Intestine
757) Air quality depicting PM- 2.5 is more hazardous to -
Answer
Old Men and Women
758) Human Environment Conference-1972 was held at -
Answer
Stockholm
759) Kalaazar is transmitted by -
Answer
sand fly
760) Green manure is obtained from -
Answer
Decomposing green legume plants
761) The lockjaw is a pathological condition of -
Answer
Tetanus
762) What is the other name for Vitamin B2?
Answer
Riboflavin
763) Cockroach cannot survive in the water because its respiratory organ is -
Answer
Trachea
764) The example of hermaphrodite animal in which cross fertilization occurs is -
Answer
Hydra
765) Meningitis is a disease which affects the -
Answer
Brain
766) Number of teeth which are replaced in man are -
Answer
12
767) The disease that is caused by virus is -
Answer
Common cold
768) In plants water is absorbed by the root hairs by a process called:
Answer
Osmosis
769) Which carbohydrate is used in silvering of mirrors?
Answer
Glucose
770) The total number of ear bones is -
Answer
6
771) Biodegradable wastes can usually be converted into useful substances with the help of -
Answer
bacteria
772) In digestion, proteins are converted into -
Answer
Amino acids
773) Rabies is caused by -
Answer
virus
774) fiber is used in making bulletproof vests.
Answer
Kevlar
775) Which part of the tea plant is used for making tea?
Answer
Leaves
776) Cuscuta is a -
Answer
complete stem parasite
777) The element which is required by the plant in large quantity -
Answer
Nitrogen
778) The coding segment of DNA is called in -
Answer
Codon
779) Mercury poisoning in man causes the disease -
Answer
Minamata
780) Chromosomes consist of -
Answer
DNA and proteins
781) Absence of fish along a river indicates -
Answer
Zone of degradation
782) Seed dormancy is regulated by -
Answer
Abscisic acid
783) The process through which excess of light energy is dissipated in photosynthesis is known as -
Answer
Quenching
784) AIDS virus destroys -
Answer
Lymphocytes
785) Which bacterial strain developed from natural isolates by genetic manipulations can be used for treating oil spills?
Answer
Nitrosomonas
786) Thiamidine dimer formation in DNA is caused by -
Answer
UV-rays
787) Smut of wheat is mused by -
Answer
Ustilago tritici
788) The seat of intelligence is situated in the -
Answer
cerebellum
789) Octopus is -
Answer
a mollusc
790) Potential of air pollution increases when the ventilation coefficient is -
Answer
< 6,000 m2/s
791) In our body, antibodies are formed against pathogens in -
Answer
thymus by lymphocytes
792) Prawn heart carries -
Answer
oxygenated blood
793) Minamata disease was caused due to -
Answer
Mercury
794) Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as -
Answer
decomposers
795) The yellow colour of urine is due to presence of -
Answer
Urochrorne
796) Silk is produced by -
Answer
Larva of silkworm
797) The tallest plant in the world is -
Answer
Eucalyptus
798) The only bird that flies backward is -
Answer
Humming bird
799) Plants differ from animals in having -
Answer
localised growth
800) Root nodules are commonly found in -
Answer
Leguminous plants
801) A disease caused by Protozoa is -
Answer
Malaria
802) The most abundant enzyme in the living world is -
Answer
Rubisco
803) Scurvy is a disease of -
Answer
skin
804) The term ’Rh factor’ refers to -
Answer
Rhesus factor
805) Who proposed the adage "Survival of the fittest"?
Answer
Darwin
806) The largest invertebrate is a/an -
Answer
Mollusc
807) The basic structural and functional unit of living organisms is -
Answer
Cell
808) The acid stored in batteries is -
Answer
Sulphuric acid
809) 'Stone Cancer' occurs due to -
Answer
Acid rain
810) Scientists has genetically modified photosynthesis process to increase crop yield by -
Answer
15 Percent
811) When the Left Ventricle in the human heart contracts, the blood moves to the -
Answer
Aorta
812) The vitamin necessary for coagulation of blood is -
Answer
Vitamin K
813) The first effective vaccine against polio was prepared by :
Answer
Jonas E. Salk
814) In mammals, an important role of excretion is played by -
Answer
Kidneye
815) Milk of magnesia is a suspension of –
Answer
magnesium hydroxide
816) Potassium metabisulphate is used as a food preservative for -
Answer
Fruit Juices
817) Which of these joints is a Hinge joint?
Answer
Elbow
818) The oil which causes dropsy is -
Answer
Argemone oil
819) Universal donors are people with the blood group -
Answer
O
820) Pulses are a good source of -
Answer
Proteins
821) High level of uric acid in the blood causes -
Answer
Gout
822) The function of Haemoglobin is to :
Answer
carry oxygen
823) When nitrogenous waste accumulates in the blood which organ is not functioning?
Answer
Kidneys
824) EEG is a technique to record the activity of -
Answer
brain
825) Lactose is present in -
Answer
milk
826) The colour of cow's milk is slightly yellow due to the presence of -
Answer
carotin
827) Which one of these is a communicable disease?
Answer
Diphtheria
828) What is the Normal Blood Volume in human adult?
Answer
Five litres
829) Organisms that generate energy using light are known as -
Answer
Photoautotrophs
830) The fasting blood glucose level in adults in mg/100 ml is -
Answer
100
831) Entomology is the study of -
Answer
Insects
832) Exobiology is a science that deals with -
Answer
life in the outer space
833) Name the organ where the embryo develops -
Answer
Ureter
834) Plants get water through the roots because of —
Answer
capillarity
835) The central control of respiratory activity in human body is exercised by -
Answer
medulla oblongata
836) The biological decomposition of organic substances in wastes under controlled conditions known as -
Answer
composting
837) Human bone does not contain -
Answer
oxygen
838) Birds usually have a single -
Answer
Ovary
839) Alfalfa is the name of a kind of -
Answer
Crop
840) The protein present in the finger nail is -
Answer
Keratin
841) 'Comose’ seeds are seeds with -
Answer
Long hairs
842) The sugar present in DNA is -
Answer
Pentose
843) Itai-itai disease is due to poisoning caused by -
Answer
Cadmium
844) Two richest known sources of edible protein are -
Answer
Meat and eggs
845) The blood vessel carrying blood from the lungs to the heart is -
Answer
Pulmonary vein
846) In onion food is stored in -
Answer
scale leaves
847) In human body, cartilage is found in -
Answer
nose
848) Sickle-cell anemia is a disease caused due to the abnormality in -
Answer
red blood cells
849) Jaundice is caused due to the infection of -
Answer
liver
850) Haemophilia is -
Answer
a genetic disorder
851) The blood vessel supplying blood to the kidney is -
Answer
the renal artery
852) Food for the developing fetus is supplied by the -
Answer
Placenta
853) The saliva helps in the digestion of -
Answer
Starch
854) Which vitamin deficiency causes the disease, Pernicious anaemia?
Answer
Vitamin B12
855) 'Pigeon milk' is produced by -
Answer
Birds
856) Nitrogenous food is -
Answer
Protein
857) The pigment which gives colour to the human skin is -
Answer
Melanin
858) Prawns belong to which family?
Answer
Crustaceans
859) Number of the pairs of the spinal nerves are:
Answer
31
860) How many times does the heartbeat approximately in a minute in humans?
Answer
72 times
861) Protein is considered as a -
Answer
Body builder
862) Polio disease is caused by -
Answer
Virus
863) The carbon dioxide content in the air that we exhale is about -
Answer
0.04
864) Blood pressure is controlled by -
Answer
Adrenal gland
865) Acquired Immuno Deficiency Syndrome (AIDS) is caused by -
Answer
virus
866) The function of Trypsin is to -
Answer
break down proteins
867) Mesothelioma is a type of cancer. The most common area affected in it is the lining of the -
Answer
lungs
868) How do most insects respire?
Answer
By tracheal system
869) Transport of oxygen by blood takes place with the help of -
Answer
Erythrocytes
870) Butter is -
Answer
water dispersed in fat
871) The part of the flower that can carry out photosynthesis is -
Answer
Calyx
872) ‘Pacemaker’ is associated with -
Answer
Heart
873) Insufficient dietary iodine can cause -
Answer
Enlarged thyroid
874) What determines the sex of a child?
Answer
Chromosomes of the father
875) In a freezer ice cubes will be formed more quickly in trays made of -
Answer
aluminium
876) Carrot is a rich source of vitamin -
Answer
A
877) Which is the largest blood vessel, in human body?
Answer
Aorta
878) The blotting technique used to identify the isolated protein is -
Answer
Western blotting
879) Morphology of Chromosomes can be best studied at -
Answer
Metaphase
880) The vitamin which cannot be had from any vegetables is -
Answer
Vitamin D
881) Which is the sensory receptor involved in detecting blood pressure?
Answer
Mechanoreceptor
882) The concept of ‘survival of the fittest’ was first advocated by -
Answer
Darwin
883) Deficiency of vitamin D in children causes -
Answer
rickets
884) Wings of birds are:
Answer
Modified forelimbs
885) Radioactive materials should be kept in the container made of :
Answer
Steel
886) Cell becomes turgid because of -
Answer
Endosmosis
887) The process of imbibitions involves -
Answer
Absorption
888) 'Barr body' is found in -
Answer
Female somatic cells
889) One of the best solutions to get rid of non-biodegradable wastes is -
Answer
Recycling
890) Fist is a first class protein as it Contains -
Answer
essential amino acids
891) Stern is usually -
Answer
Positively Phototropic
892) The cells which are closely associated and interacting with guard cells are -
Answer
Subsidiary cells
893) Conversion of starch to sugar is essential for -
Answer
Stomatal opening
894) The hydrophilic nature of DNA is due to the presence of -
Answer
a number of hydrogen bonds
895) Which one of these animals is jawless -
Answer
Myxine
896) Minamata disease is caused by pollution of water by -
Answer
mercury
897) Commercially valued cork is obtained from -
Answer
Quercus spp
898) Golden Revolution in India refers to growth of -
Answer
Oilseeds production
899) Eustachian Tube, is located in which part of human body?
Answer
Ear
900) Which part of the brain plays an important role in motor control?
Answer
Cerebellum
901) Pneumonia is a bacterial disease caused by the type of bacteria called .
Answer
Cocci
902) "Alfalfa" is the name of a -
Answer
Grass
903) Chlorophyll was first isolated and named by -
Answer
Caventou and Pelletier
904) The exchange of gases takes place in the leaves through these pores for the purpose of photosynthesis. These pores are called -
Answer
Stomata
905) Goitre is caused by the deficiency of _.
Answer
Iodine
906) Which part of brain is also known as "little brain"?
Answer
Cerebellum
907) Which organism is responsible for alcohol fermentation?
Answer
Yeast
908) Polio is caused by -
Answer
Virus
909) Copper is associated with mitochondria' enzymes.
Answer
Cytochrome oxidase
910) Metals can be at room temperature.
Answer
Solid or liquid
911) BOD stands for :
Answer
Biochemical oxygen demand
912) Addition excessive amounts of heat to a lake is referred to as -
Answer
Thermal pollution
913) Mycotoxins are produced by -
Answer
Fungi
914) Red rot of sugarcane is caused by -
Answer
Colletotrichum falcaturn
915) The fleshy thalamus is edible in -
Answer
Apple
916) The sense of balance is achieved by -
Answer
Cerebellum equilibrium
917) Bacterial cells do not have -
Answer
Mitochondria
918) A cellulosic wall is found in the cells of -
Answer
plants
919) The filtration unit of kidney is -
Answer
nephron
920) The heart rate in an adult person is -
Answer
70-80 times per minute
921) Bacteriophage was discovered by -
Answer
Felix d'Herelle and Frederick Twort
922) Genes are not found in pairs -
Answer
in gametes
923) Which vein brings clean blood from the lungs into the heart?
Answer
Pulmonary Vein
924) Leaving agricultural land uncultivated for some years known as -
Answer
Fallowing
925) The gametophyte is called prothallus in -
Answer
Pteridophyta
926) The best example of Polyembryony is -
Answer
Citrus
927) The main function of palisade parenchyma in leaf is -
Answer
Toxins
928) The harmful substances produced by the microbes are known as -
Answer
Toxins
929) Approximate number of skeletal muscles is :
Answer
700
930) The Ozone layer protects us from:
Answer
Ultra-Violet rays
931) Children especially in western countries who receive very little sunshine suffer from -
Answer
rickets
932) In water treatment plant, use of chloramines ensures -
Answer
disinfection
933) Which blood vessels have the smallest diameter?
Answer
Capillaries
934) Fermentation of milk to curd is due to -
Answer
Lactobacillus
935) DOTS is a treatment given to patients suffering from -
Answer
Tuberculosis
936) Magnesium is a constituent metal of -
Answer
Chlorophyll molecule
937) Silk wonns feed on -
Answer
Mulberry leaves
938) Trachoma is a disease of the -
Answer
Eyes
939) The chemical component that is invariably found in all viruses is -
Answer
proteins
940) Which is used as an Air pollution indicator?
Answer
Lichens
941) The source of oxygen in atmosphere is due to -
Answer
Photosynthesis
942) is called as 'Father of Genetics'.
Answer
Gregor Johann Mendel
943) Which enzyme digests proteins in the stomach?
Answer
Pepsin
944) Fermentation is a type of process.
Answer
Anaerobic Respiration
945) Name the scientist who proved that plants have life.
Answer
Jagdish Chandra Bose
946) The sexual reproductive organs of aspergillus are -
Answer
Antheridium and Ascogonium
947) Name the gas used in preparation of bleaching powder -
Answer
Chlorine
948) Rio Summit is associated with -
Answer
Convention on Biological Diversity
949) A universal donor has the blood group -
Answer
O
950) The enzyme which catalyzes the unwinding of DNA helix during replication is:
Answer
Helicase
951) Blue Revolution is related to:
Answer
Poultry
952) Scurvey is caused by:
Answer
Vitamin 'C'
953) Linseed is obtained from -
Answer
Flax
954) The colour of the carrots is due to the presence of -
Answer
Carotene
955) Name the vitamin whose deficiency causes excessive bleeding?
Answer
Vitamin K
956) Study of old age is called -
Answer
Gerantalogy
957) Wings of birds and insects are -
Answer
Analogous
958) Oxyntic cell is meant for the secretion of -
Answer
Hydrochloric acid
959) The most suitable soil for the production of cotton is -
Answer
Black lava soil
960) Chromosome designation of Turner syndrome is:
Answer
44A+XO
961) Rusting is the process of -
Answer
Oxidation
962) Enzymes are -
Answer
Carbohydrates
963) The plant that behaves as a root parasite is -
Answer
Cuscuta
964) Myopia is a disease connected with -
Answer
Eyes
965) Dumb-bell shaped guard cells are present in -
Answer
Wheat
966) Which lobe of human brain is associated with hearing -
Answer
Temporal lobe
967) If the stomach did not produce any hydrochloric acid, which enzyme will not function?
Answer
Pepsin
968) The environment includes -
Answer
Abiotic and Biotic factors
969) Rhizobium is a kind of -
Answer
Symbiotic bacteria
970) Polyploidy arises due to change in the -
Answer
number of chromosomes
971) The largest artery in human body is -
Answer
Aorta
972) The tree species most commonly used in social forestry is -
Answer
Eucalyptus
973) The most productive ecosystem in the biosphere is -
Answer
Estuary
974) Panthera Pardus is the scientific name of -
Answer
Leopard
975) The plant cell will shrink when placed in -
Answer
Hypertonic solution
976) Bacterial decomposition of biological material under anaerobic condition is -
Answer
fermentation
977) The only living tissue in plant xylem is -
Answer
Xylem parenchyma
978) 'Insectivorous plants' trap insects for -
Answer
Nitrogen
979) Blood Circulation was discovered by -
Answer
William Harvey
980) Aerenchyma is present in -
Answer
Aquatic plants
981) Which acid is present in lemon -
Answer
citric acid
982) One of the best solutions to get rid of non-biodeadable waste is -
Answer
Recycling
983) Male mosquitoes take their food from -
Answer
sap of plants
984) Smooth muscles are likely to be found in -
Answer
stomach
985) The substrate of photorespiration is -
Answer
Glycolate
986) Maximum oxygen is available from -
Answer
Phytoplanktons
987) Water flows off the wings of birds and insects due to the presence of -
Answer
Waxes
988) Insectivorous plants grow in soil which is deficient in -
Answer
Nitrogen
989) Hind limbs thumping on ground by a rabbit is a behaviour related to -
Answer
Warning signal to members
990) When the electric impulse travels along the axon and reaches the other end called the synaptic terminal, this impulse triggers the release of -
Answer
Vesicles
991) Which is the second largest gland of Human body?
Answer
Pancreas
992) From which part of Opium plant we get morphine?
Answer
Fruit coat
993) Contraceptive pills in the market contain -
Answer
steroid-hormones
994) The newly hatched tadpole breaths through its -
Answer
External gills
995) Virus in Latin means -
Answer
Poison
996) Which disease is caused by Nickel?
Answer
Dermatitis
997) Name the acid present in lemon.
Answer
Citric acid
998) Name the tiny pores present on the surface of leaves in plants.
Answer
Stomata
999) Rinderpest disease of Cattle is caused by -
Answer
Virus
1000) Haemoglobin in the blood is a complex protein rich in -
Answer
Iron