Biology 320 to 418 Qts & Ans
320. Assertion (A): Human diet should compulsorily contain Glycine, Serine and Tyrosine:
Reason ( R) : Essential amino acids cannot be synthesised in the human body.
a) a) Both A and R are individually true and R is the correct explanation of A
b) b) Both A and R are individually true and R is the correct explanation of A
c) c) A is true but R is false
d) d) A is false but R is true
Ans: d
321. With reference to normal human beings, consider the following statements:
1. In response to the presence of HCL. Secretin is produced from the duodenum.
2. Enterogastrone is produced in the small intestine in response to the presence of fatty acids.
Which of these statements is/are correct?
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2
Ans: c
322. With reference to the work human kidney consider the following statements:
1. After the waste is removed in the kidney, the cleaner blood is sent back through renal artery
2. From Bowman’s capsule., the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in th e renal vein
Which of these statements is/are correct?
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor
Ans: c
323. Consider the following statements:
1. 1. Molasses is a by – product of sugar production processes
2. 2. Bagasse obtained in the sugar mills is used as fuel in the boilers to generate steam for the sugar factories
3. Sugar can only be produced from sugarcane as the raw material.
Which of these statements is/are correct?
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1,2 and 3
Ans: a
324. Octopus is:
a) an arthropod
b) an echinoderm
c) a hemichordate
d) a mollusc
Ans: d
325. Consider the following conditions of a sick human body:
1. Swollen Iymph nodes
2. Sweaitng at night
3. Loss of memory
4. Loss of weight
Which of these are the symptoms of AIDS?
a) 1 and 2
b) 2, 3 and 4
c) 1, 3 and 4
d) 1, 2, 3 and 4
Ans: d
326. Consider the following statements:
1. The common blue green algae Spirogyra and Ulothrix are found in both fresh water ponds and oceans.
2. The chameleon can look ahead with one eye, and at the same time look behind with another.
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2
Ans: b
327. Which one of the following statements is not correct?
a) a) Milk contains none of the B- vitamins
b) b) Vitamins –A (retinal) deficiency leads to dry and scaly skin
c) c) One of the symptoms of scurvy is pain in the joints
d) d) Vitamin BI (thiamine) deficiency can lead to heart failure
Ans: a
328. Consider the following statements:
1) Non- function of lachrymal gland is an important symptom of deficiency of Vitamin A.
2) Deficiency of vitamin BI can lead to indigestion and heart enlargement
3) Vitamin C deficiency can lead to pain in the muscles.
4) Deficiency of vitamin D causes increased loss of Ca++ in urine.
Which of these statements given above is/are correct?
a) 1 and 2
b) 2 ,3 and 4
c) 1,3 and 4
d) 1,2,3 and 4
Ans: c
329. The hormone insulin is a:
a) a) Glycolipid
b) b) Fatty acid
c) c) Peptide
d) d) Sterol
Ans: c
330. In which organ of the human body are the Iymphocyte cells formed?
a) Liver
b) Long bone
c) Pancreas
d) Spleen
Direction: The following question consists of two statements: one labelled as the
‘Assertion (A)’ and the other as ‘Reason (R) ’. You are to examine these two statements carefully and select the answers to these items using the codes given below:
Codes:
a) Both A and R are individually true and R is the correct explanation of
b) Both A and R are individually true and R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: b
331. Assertion (A): Fatty acids should be a part of the balanced human diet.
Reason ( R) : The cells of the human body cannot synthesize any fatty acids.
Ans: a
332. Consider the following statements:
1. Femur is the longest bone in the human body.
2. Cholera is a disease caused by bacteria.
3. ‘Athlete’s foot’ is a disease caused by virus.
Which of these statements given above is/are correct?
a) 1 and 2
b) 2 and 4
c) 1 and 3
d) 1,2, and 3
Ans: c
333. Pneumoconiosis afflicts the workers who work mainly in
1) Tanneries
2) Coal mining industry
3) Distilleries
4) Galss industry
Direction: The following question consit of two statemnts, one labeled as the ‘Assertion (A)’ and the other as 'Reason ( R) You are to examine these two statements carefully and select the answer to these items using the codes given below:
a) Both A and R are individually true and R is the correct explanation of
b) Both A and R are individually true and R is the correct explanation of A
c) A is true but R is false
d) A is false but R is tru
Ans: b
334. Assertion (A) : All the protiens in our food are digested in small instenise only.
Reason ( R) : The protein –digesting enzymes from pancreas are released in to small intestine.
Direction: The following question consist of two statements, one labeled as the ‘Assertion (A)’ and the other as ‘Reason (R) ‘ you are to examine these to statements carefully and select the answer to these items using the codes given below
a) Both A and R are individually true and R is the correct explanation of A
b) Both A and R are individually true but and R is the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: d
335. Assertion (A): Amoeba reproduces by fission.
Reason (R) : All unicellular organism reproduce by asexual methods.
Direction: The following question consist of two statements, one labeled as the ‘Assertion (A)’ and the other as ‘Reason (R) ‘ you are to examine these to statements carefully and select the answer to these items using the codes given below
a) Both A and R are individually true and R is the correct explanation of A
b) Both A and R are individually true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: c
336. Assertion (A): The person with diabetes insipidus feels thirsty.
Reason ( R) : A person with diabetes insipidus suffers from excess secretion of vasopressin.
Ans: c
337. Which one of the following diseases of milching animals are infectious?
1. Foot and Mouth disease
2. Anthrax
3. Black Quarter
4. Cow pox
Select the correct answer using the codes given below:
a) 1, 2 and 3
b) 2, 3 and 4
c) 1 and 4
d) 1, 2, 3 and 4
Ans: d
338. Under which one of the Minister of the Government of India does the Food and Nutrition Board work?
a) Minister of Agriculture.
b) Minister of Health and Family Welfare.
c) Minister of Human Resource Development
d) Minster of Rural Development
Ans: b
339. Consider the following statement:
1. Dengue is a protozoan disease transmitted by mosquitoes.
2. Retro – orbital pain is not a symptom of Dengue.
3. Skin rash and bleeding from nose and gums are some of the symptoms of the Dengue.
Which one of the following is/are correct?
a) 1 and 2
b) 3 only
c) 2 only
d) 1 and 3
Ans: b
340. Consider the following statements:
1. 1. Caffeine, a constituent of tea and coffee is a diuretic
2. 2. Critic and is used in soft drinks
3. 3. Ascorbic acid is essential for the formation of bones and teeth.
4. 4. Critic acid is a good substitution for ascorbic acid in our nutrition.
Which one of the statements following is/are correct?
a) 1 and 2, only
b) 1,2 and 3, only
c) 3 and 4 only
d) 1, 2, 3 and 4
Ans: b
341. What is the name of the vessel that delivers the nutrient rich blood from the stomach & small intestine to the livers?
a) Left hepatic artery
b) Hepatic vein
c) Right heptic artery
d) Hepatic portal vein
Ans: d
342. Consider the following statements with reference to human body?
1. 1. The common bile duct release its contents into stomach.
2. 2. The pancreatic duct releases its contents into duodenum.
Which one of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Ans: b
343. Consider the following statements
1. Meningococcal Meningitis is transmitted from person to person by mosquito bites.
2. Vomiting and neck pain are two of the symptoms of Meningococcal meningitis.
Which one of the statements following is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Ans: b
344. Which one among the following is not a good source of nutritional calcium?
a) Rice
b) Ragi
c) Skimmed milk
d) Egg
Ans: a
345. Consider the following statements:
1. 1. ELISA test is employed as the first and most basic test for an individual to detect cancer.
2. 2. Almost 50% of human beings have Rh + blood while the remaining have Rh – blood.
wWhich one of the statements following is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Direction: The following question consist of two statements, one labeled as the
Assertion (A) and the other as ‘Reason (R) ‘ you are to examine these to statements carefully and select the answers to these items using the codes given below
a) Both A and R are individually true and R is the correct explanation of
b) Both A and R are individually true but R is the correct explanation of A
c) A is True but R is false
d) A is false but R is true
Ans: d
346. Assertion (A): Cellulose is used in making shatter proof glass.
Reason ( R) : Polysaccharides are not soluble in water.
Ans: d
347. Which one of the following is the correct sequence in the order of decreasing length of the three structureal parts given below of small intestine in the human body?
a) Jejunam – Duodenum – IIeum
b) IIeum – Duodenum – Duodenum
c) Jejunum – Ileum –Duodenum
d) Ileum – Jejunum –Duodenum
Ans: d
348. In human boy, which one of the following hormones regulates blood calcium and phosphate?
In human body, which one of the following hormones regulates blood calcium and phosphate?
a) a) Glucagon
b) b) Growth hormone
c) c) Parathyroid
d) d) Thyroxine
Ans: c
349. How do most insects respire?
a) a) Through skin
b) b) Through gills
c) c) BY lungs
d) d) BY tracheal system
Ans: d
350. In human being, normally in which one of the following parts, does a sperm fertilize the ovum?
a) a) Cervix
b) b) Fallopian tube
c) c) Lower part f uterus
d) d) Upper part of uterus
Ans: b
351. Which one of the following parts of human brain is the regulating centre for swallowing and vomiting?
a) a) Cerebellum
b) b) Cerebrum
c) c) Medulla oblongata
d) d) Pons
Ans: c
352. Production of which one of the following is a function of the liver?
a) Lipase
b) Urea
c) Mucus
d) Hydrochloric acid
Ans: b
353. Which of the following is not a digestive enzyme in the human systems?
a) a) Cholecystokinin
b) b) Gastrin
c) c) Secretin
d) d) All of the above
Ans: d
354. Which of the following types of light are strongly absorbed by plants?
a) Violet and orange
b) Blue and red
c) Indigo and yellow
d) Yellow and violet
Ans: b
355. In the human body, which structure is the appendix attached to?
a) The large intestine
b) The small intestine
c) The gall bladder
d) The stomach
Ans: a
356. Robert Webster is known for his work associated with which one of the following?
a) a) Cardiology
b) b) Influenza virus
c) c) HIV –AIDS
d) d) Alzheimer
Ans: b
357. Which one of the following parts of the pitcher plant becomes modified into pitcher?
a) Stem
b) Leaf
c) Stipule
d) Petiole
Ans: b
358. Consider the following statements about probiotic food:
1. Probiotic food contains live bacteria which are cindered beneficial to humans.
2. Probiotic food helps in maintaining gut flora.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Ans: c
359. What is the pH level blood of normal person?
a) a) 4.5 – 4. 5
b) b) 6. 45 – 6.55
c) c) 7. 35 – 7.45
d) d) 8. 25 – 8.35
Direction: The following 4 (four) items consist of two statements, one labeled as the ‘Assertion (A)’ and the other as ‘Reason (R) ‘ you are to examine these to statements carefully and select the answer to these items using the codes given below:
a) 1) Both A and R are individually true and R is the correct explanation of
2) Both A and R are individually true but R is the correct explanation of
c) 3) A is true but R is false
d) 4) A is false but R is true
Ans: c
360. Assertion (A): In Human body, liver has an important role in fat digestion
Reason ( R): Liver produces two importance fat-digesting enzymes.
Ans: c
361. Among the following, which of the following, which one lays eggs and does not produce young ones directly?
a) Echidna
b) Kangaroo
c) Porcupine
d) Whale
Ans: a
362. The release of which following into ponds and wells helps in controlling the mosquitoes?
a) Crab
b) Dogfish
c) Gambusia fish
d) Snail
Ans: a
363. Which one of the following is an insectivorouss plant?
a) Passion flower plant
b) Pitcher plant
c) Night queen
d) ‘Flame of the forest.
Ans: b
364. For which one of the following snakes is the diet mainly composed of other snakes?
a) Krait
b) Russell’s viper
c) Rattlesnake
d) King cobra
Ans: d
365. In which one of the following kinds of organisms is the phenomenon found wherein the female kills the male after copulation?
a) a) Dragonfly
b) b) Honeybee
c) c) Spider
d) d) Pit viper
Ans: b
366. Consider the following statements:
1. Sweet orange plant is propagated by grating technique.
2. Jasmine plant is propagated by layering technique.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Ans: c
367. In the context of genetic disorders, consider the following: A women suffers from color blindness while her husband does not suffer from it, They have a son and a daughter. In this context, which one of the following statements is most probably correct?
a) Both children suffer from colour blindness.
b) Daughter suffers from colour blindness while son does not suffer from it.
c) Both children do not suffer from colour blindness.
d) Son suffers from colour blindness while daughter does not suffer from it.
Ans: d
368. Consider the following:
a) Camphor
b) Chicory
c) Vanilla
Which of the above is/are plant product (s)?
a) 1 and 2 only
b) 3 only
c) 1 and 3 only
d) 1, 2 and 3
Ans: d
369. In making the saffron spice, which one of the following parts of the plant is used?
a) Leaf
b) Petal
c) Sepal
d) Stigma
Ans: d
370. With reference to the evolution of living organisms,
Which one of the following sequences is correct?
a) Octopus –Dolphin – Shark
b) Pangolin – Tortoise –Hawk
c) Salamander – python – Kangaroo
d) Frog – Crab – prawn
Ans: c
371. Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine?
a) Malaria is caused by several species of plasmodium
b) Man does not develop immunity, to r malaria during natural infection
c) Vaccines can be developed only against bacteria
d) Man is only an intermediate host and not the definitive host
Ans: a
372. A pesticide which is a chlorinated by drocarbon is sprayed on a food crop. The food chain is: Food crop –Rat-snake- Hawk. In this food chain, the highest concentration of the pesticide would accumulated in
Which one of the following?
a) a) Food crop
b) b) Rat
c) c) Snake
d) d) dawk
Ans: d
373. King Cobra is the only snake that makes its own nest. Why does I make its nest?
a) a) It is a snake – eater and the nest helps attract other snakes
b) b) It is viviparous snake and needs a nest to give birth to its offspring
c) c) It is an oviparous snake and lays its eggs in the nest and guards the nest until they are hatched
d) d) It is a large, cold blooded animal and needs a nest to hibernate in the cold season
Ans: c
374. Some species of plants are insectivorous, why?
a) a) Their growth in shady and dark places does not allow them to undertake sufficient photosynthesis and thus they depend on insects for nutrition
b) b) They are adapted to grow in nitrogen deficient soils ad thus depend on insects for sufficient nitrogenous nutrition
c) c) They cannot synthesize, certain vitamins themselves and depend on the insects digested by them
d) d) They have remained in that particular stage of evolution as living fossils., a link between autotrophs and heterotrophs
Ans: b
375. Which one of the following process in the bodies of living organisms is digestive process?
a) Break down of proteins in to amino acids
b) Breakdown of glucose into CO-2 and H2 0
c) Conversion of glucose into glycogen
d) Conversion of amino acids into proteins
Ans: a
376. From the point of view of evolution of living organisms, which one of the following is the correct sequence of evolution?
a) Otter –Tortoise – Shark
b) Shark – Tortoise – Otter
c) Tortoise –Shark –Otter
d) Shark –Otter- tortoise
Ans: b
377. Consider the following statements:
a) 1. Hepatitis B is several times more infectious than HIV/AIDS
b) 2. Hepatitis B can cause liver cancer
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Ans: c
378. Consider the following statements:
1. Every individual in the population I equality susceptible host for Swine Flu.
2. Antibiotics have no rule in the primary treatment of Swine Flu.
3. To prevent the future spread of Swine Flu in the epidemic area, the swine (pigs) must all be culled.
Which of the statements given above is/are correct?
a) 1 and 2 only
b) 3 only
c) 1 and 3 only
d) 1, 2 and 3
Ans: a
379. With regard to the transmission of the Human Immunodeficiency virus, which one of the following statements is not correct?
a) a) The chances of transmission from female to male are twice as likely as from male to female
b) b) The chances of transmission are more if a person suffers from other sexually transmitted infection
c) c) An infected mother can transmit the infections to her baby during pregnancy, at child birth and by breast feeding
d) d) The risk of contracting infection from transfusion of infected blood is much higher than an exposure to contaminated needle
Ans: a
380. A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the three sons is A positive, B positive and O positive. The blood group of the adopted son is
a) a) O positive
b) b) A positive
c) c) B positive
d) d) Cannot be determined on the basic of the given data
Ans: a
381. Aspartame is an artificial sweetener sold in the market. It consists of a minor acids and provides calories like other amino acids. Yet, it is used as low- calories sweetening agent in food items. What is the basis of this use?
a) a) Aspartame is as sweet as table sugar, but unlike table sugar, it is not readily oxidized in human body due to lack of requisite enzymes.
b) b) When aspartame is used in food processing, the sweet taste remains, but it becomes resisitant to oxidation.
c) c) Aspartame is as sweet as sugar, but after ingestion into the body, it is converted in to metabolites that yield no calories.
d) d) Aspartame is several times sweeter than table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation.
Ans: b
382. At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us?
1. It is possible to know the pedigree of livestock.
2. It is possible to understand the cause of all human diseases.
3. It is possible to develop diseases – resistant animal breeds.
Which of the statements given above is/are correct?
a) 1 and 2 only
b) 2 only
c) 1 and 3 only
d) 1, 2 and 3
Ans: d
383. When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because
a) Water from soil cannot rise to aerial parts.
b) Roots are starved of energy.
c) Tree is infected by soil microbes.
d) Roots do not receive oxygen for respiration.
Ans: b
384. Regular intake of fresh fruits and vegetables is recommended in the diet since they area good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?
a) a) They active the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency.
b) b) They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy.
c) c) They neutralize the free radicals product in the body during metabolism
d) d) They activate certain genes in the cells of the body and help delay the ageing process.
Ans: c
385. There is concern over the increase in harmful algal blooms in the sea water of India. What could be the causative factors for this phenomenon?
1) Discharge of nutrients form the estuaries.
2) Run –off from the land during the monsoon
3) Upwelling in the seas.
Select the correct answer from the codes given below:
a) 1 only
b) 1 and 2 only
c) 2 and 3 only
d) 1,2 and 3
Ans: d
386. Consider the following kinds of organisms:
1) Bat
2) Bee
3) Bird
Which of the above is/are pollinating agent/agents?
a) 1 and 2 only
b) 2only
c) 1 and 3 only
d) 1, 2 and 3
Ans: d
387.. Consider the following kids of organisms:
1. Bacteria
2. Fungi
3. Flowering plants
Some species of which of the above kinds of organisms are employed as bio fertilisers?
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Ans: d
388. With reference to the usefulness of the by – products of sugar industry, which of the following statements is/are correct?
a) Bagasse can be used as biomass fuel for the generation of energy.
b) Molasses can be used as one of the feedstock for the production of synthetic chemical fertilizers.
c) Molasses can be used for the production of ethanol.
Select the correct answer using th codes given below:
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Ans: d
389. Improper handling and storage of cereal grains and oil seeds results in the production of toxins known as aflatoxins which are not generally destroyes by normal cooking process. Aflatoxins are produced by
a) Bacteria
b) Protozoa
c) Moulds
d) Viruses
Ans: c
390. In the grasslands, tree do not replace the grasses as a part of an ecological succession because of
a) insects and fungi
b) limited sunlight and paucity of nutrients
c) water limits and fire
d) None of the above
Ans: c
391. Consider the following minerals
a) 1. Calcium
b) 2. Iron
c) 3. Sodium
Which of the minerals given above is /are required by human body for the contraction of muscles?
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Ans: d
392. Many transplanted seedlings do not grow because
a) the new soil does not contain favorable minerals
b) most of the root hairs grip the new soil too hard
c) most of the root hairs are lost during transplantation
d) leaves get damaged during transplantation
Ans: c
393. Which of the following statements is /are correct?
1) Viruses lack enzymes necessary for the generation of energy.
2) Viruses can be cultured in my synthetic medium.
3) Virus are transmitted form one organism to another by biological vectors only.
Select the correct answer using the codes given below:
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Ans: a
394. Which of the following leaf modificationsoocurs/ occur in desert areas to inhabit water loss?
1. 1. Hard and waxy leaves
2. 2. Tiny leaves or no leaves
3. 3. Throns instead of leaves
Select the correct answer using the codes given below
a) 1 and 2 only
b) 2only
c) 1 and 3 only
d) 1, 2 and 3
Ans: d
395. Consider the following pairs:
Vitamins Deficiency? : Diseases
1. Vitamin C : Scurvy
2. Vitamin D : Rickets
3. Vitamin E : Night blindness
Which of the pairs above is/are correctly matched?
a) 1 and 2 only
b) 3 only
c) 1,2 and 3
d) None
Ans: a
396. Lichens, which are capable of initiating ecological succession even on a bare rock, are actually a symbiotic association of
a) a) algae and bacteria
b) b) algae and fungi
c) c) bacteria and fungi
d) d) fungi and mosses
Ans: b
397. Which one of the following is the process involved in photosynthesis?
a) a) Potential energy is released to form free energy
b) b) Free energy is converted in to potential energy and stored
c) c) Food is oxidized to relase carbon dioxide and water
d) d) Oxygen is taken, and carbon dioxide and water vapour are given out
Ans: b
398. Which of the following is/are correct regarding vegetative propagation of plants?1. Vegetative propagation produces clonal population
2. Vegetative propagation helps in eliminating the virus.
3. Vegetative propagation can be practiced most of the year.
Select the correct answer using the codes given below:
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Ans: d
399. Among the following organisms, which one does not belong to the class of other three?
a) Crab
b) Mite
c) Scorpin
d) Spider
Ans: a
400. Consider the following
1. Bats
2. Bears
3. Rodents
The phenomenon of hibernation can be observed in
Which of the above kinds of animals?
a) 1 and 2 only
b) 2 only
c) 1, 2 and 3
d) Hibernation cannot be observed in any of the above
Ans: c
401. HINI Virus is sometimes mentioned in the news with reference to which one of the following diseases?
a) a) AIDS
b) b) Bird flu
c) c) Dengue
d) d) Swine flu
Ans: d
402. In eye donation, which one of the following parts of donor’s eye is utilised?
a) a) Iris
b) b) Lens
c) c) Cornea
d) d) Retina
Ans: c
403. Which one of the following genetic diseases is sex linked?
a) a) Royal haemophilia
b) b) Tay – Sachs disease
c) c) Cystic fibrosis
d) d) Hypertension
Ans: a
404. Neem tree has acquired industrial importance as a source of
a) biopesticide and anti –fertility compound
b) anti –fertility compound, bio fertilizer and anti-cancer grug
c) bio fertilizer, bio pesticide and bioferility compound
d) anti –cancer drug, bio pesticide and bio fertilizer
Ans: c
405. Lathyrism is caused by excessive consumption of
a) a) Kasari dal
b) b) Mustard oil
c) c) Polished rice
d) d) Mushrooms
Ans: a
406. Barium in a suitable form is a administered to patients before an X-ray examination of the stomach, because
a) barium allows X-rays to pass through the stomach on account of its transparency to x-rays
b) barium compound, like magnesium sulphate helps in cleaning the stomach before X-ray examination
c) barium is a good absorber of X-rays and this helps the stomach to appear clearly in contrast with the other regions in the picture
d) barium salts are white in color and this helps the stomach to appear clearly in contrast with other regions in the picture
Ans: c
407. When ants bite, they inject
a) glacial acetic acid
b) methanol
c) formic acid
d) stearic acid
AnS: c
408. Which one of thefolloiwng is useful functional association between fungi and the roots of higher plants?
a) Biofertilizer
b) Coralloid root
c) Lichen
d) Mycorrhiza
Ans: d
409. Match the hormones in List I with items in List II and select the correct answer using the codes given below the Lists:
List I : List II
A. Adrenalin : 1. Anger, Fear, Danger
B. Estrogen : 2. Attracting partners of smell through sense
C. Insulin : 3. Females
D. Pheromones : 4. Glucose
Codes:
A B C D
a) 3 1 4 2
b) 1 3 2 4
c) 1 3 4 2
d) 3 1 2 4
Ans: c
410. Match List I (Drugs/Chemicals) with List II (Their uses) and select the correct answer using the codes given below the Lists:
List I : List II
A. Atropine : 1. Local anesthesia
B. Ether : 2. Heart trouble
C. Nitroglycerine: 3. Dilation of pupil
D. Pyrethrin : 4. Mosquito control
Codes:
A B C D
a) 1 3 2 4
b) 1 3 4 2
c) 3 1 4 2
d) 3 1 2 4
Ans: a
411. Biological Oxygen Demand (BOD) is a standard criterion for
a) Measuring oxygen levels in blood
b) Computting oxygen levels in forest ecosystems
c) Pollution assay in aquatic ecosystems
d) Assessing oxygen levels in high altitude regions
Ans: c
412. Consider the following statements:
1. 1. In tropical regions, Zika virus disease is transmitted by the same mosquito that transmits dengue.
2. 2. Sexual transmission of Zinka virus disease is possible.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Ans: c
413. Which of the following leaf modifications occur(s) in the desert areas to inhabit water loss?
1. Hard and waxy leaves
2. Tiny leaves
3. Throne instead of leaves
Select the correct answer using the code given below:
a) 2 and 3 only
b) 2 only
c) 3 only
d) 1, 2 and 3
Ans: d
414. Consider the following:
1. Birds
2. Dust blowing
3. Rain
4. Wind blowing
Which of the above spread plant diseases?
a) 1 and 3 only
b) 3 and 4 only
c) 1,2 and 4 only
d) 1, 2, 3 and 4
Ans: d
415. Match List with List II and select the
correct answer using the codes given below the Lists
List I : List
II
(Substance) : (physiological role)
A. Ptyalin : 1. Converts angoiten – sinogen in
blood into angiotensin
B. Pepsin : 2. Digests starch
C. Renin : 3. Digetst protiens
D. Oxytocin : 4. Hydrolyses fats
:
5. Induces contraction of smooth muscles
Codes:
A B
C D
a) 2
3 1 5
b) 3
4 2 5
c) 2
3 5 1
d) 3
1 2 4
Ans: a
416. Among living organisms, which one of the
following is the most responsible factor for bringing about the origin of a new
species?
a) a) Isolation
b) b) Mutation
c) c) Natural Selection
d) d) Sexual Reproduction
Ans: b
417. Ticks and mites are actually
a) a) Arachnids
b) b) Crustaceans
c) c) Insects
d) d) Myriads
Ans: a
418. With references to the blood in a normal
person, which one of the following statements is correct?
a) Compared to arteries, veins are less
numerous and hold less of the body’s at any given time.
b) Blood cells constitutute about 70 per
cent of the total volume of the blood
c) White Blood Cells (WBC) are made by
lymph nodes only
d) The blood has more platelets than WBC
Ans: d