Quiz about ANIMAL-PHYSIOLOGY IN GENERAL AWARENESS

Question 1

[A] In mammals ends of presynaptic fibres are enlarged to form synaptic Knobs which are separated by a synaptic cleft from postsynaptic neurons. Each synaptic knob contains many mitochondria and small gran- ule-Iike synaptic vesicles filled with minute packets of the chemical that transmits im- pulses to postsynaptic neurons. [R] The chemical transmitters are called neurohumors which proportionate to `K^+` in- flux.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 2

[A] Upon stimulation of a muscle cell cal- cium ions `(Ca^(++))` are released from the sar- coplasmic reticulum. [R] In reacting with a protein complex `Ca^(++)` unmasks myosin binding sites on the ac-tin filaments.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 3

[A] in mammalian heart there is a very swift conduction of stimulation all over the body. [R] Conduction of stimulation is caused by Purkinje fibres and Bundle of HisA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 4

[A] Deamination occurs by transaminase enzyme in kidney. [R] Removal of COOH group from an amino acid is used in the production of urea.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 5

[A] A tadpole whose thyroid gland has been removed does not metamorphose into adult [R] calcitonin and thyroxine are produced from thyroid gland these hormones stimu- late protein synthesis for the development and growth of tadpole larva.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 6

[A] Taste buds are called the sense organs for olfaction [R] Taste buds bear olfactory receptor cells which get stimulated by certain chemical substancesA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 7

[A] Testes are attached to abdominal wall by a ligament and under testosterone influence it is drawn into scrotum. [R] Leydig cells secrete androgens like test- osterone.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 8

[A] The tadpoles become giant tadpoles when fed on thiourea. [R] Thiourea is an antithyroid substanceA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 9

[A] Pinna of ear is quite elastic and pliable. [R] Pinna Qf ear is made up of spongy bone.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 10

[A] Osteoporosis is a bone disorder that re- sults from the loss of calcium and phosphate from the bone matrix. [R] In osteoporosis osteoblast activity is de- creased and new bone is deposited more slowly than it is removed by osteoclasts.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 11

[A] in amphibians heart is two chambered. [R] The oxygenated blood is returned to the heart through sinus venosus.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 12

[A] Peyer s patches are derivatives of lym- phoid tissue. [R] These are most numerous in the region of colon.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 13

(A] Kangaroo rat can live without drinking water. [R] This is an adaptation to water scarcity in arid conditionsA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 14

[A] Synaptic vesicles fuse with membrane and release neurotransmitter molecules. [R] Neurotransmitter attaches to receptor site and open sodium channels to allow so- dium to flow into post synaptic cell causing depolarisation.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 15

Statememt 1 In a Graafian follicle the primary cell the and the follicle cells may be regarded sibling cells. Statememt 2 Both aride from the same parent cell the oogonium by mitotic divisions.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 16

[A] SA node is contraction centre or Pace Maker. [R] Nodal fibres of SA node are embeded in the wall of right atriumA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 17

[A] Acetylchoiine allows a nerve cell to com- municate chemically with a muscle cell at neuromuscular junction. [R] Acetyicholine diffuses across the junc- tion and binds to some receptors on mem- brane of muscle cell.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 18

A Transmission of the nerve impulse across a synapse is accomplished by neurotransmitters . R Transmission across a synapse usually requires neuro transmitters because there is space i.e. synaptic cleft that separates one neuron from another .A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 19

[A] Tympanic membrane stretching across the aperture between skull bones or within an external meatus. [B] This vibrates periodically and transmit- ting external air pressure changes to ear os- sicles of middle ear.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 20

[A] Emboly involves the invagination and in- volution through bottling process by the mesentoblast cells. [R] Emboly is exhibited by the _formation elongation and ultimate recession of the primitive streak.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 21

[A] Emboly involves the invagination and in- volution. Enmbloy is exhibited by the formation elongation and ultimate recession of the primitive streakA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 22

[A] Steroid hormones are similar to choles- terol in structure. [R] Steroids contain phenanthrene ring struture.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 23

[A] After operation menstrual cycle in woman may be stopped. [R] Ovarian hormones induce menstrual cycleA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 24

[A] The central nervous system regulates the release of saliva from the salivary glands. [R] Salivary glands release lipase into the mouth and begins the digestion of starch.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 25

[A] A portal system is a complex of veins which begins in capillaries and ends in capil- laries before the blood which courses through it is retruned to the heart. [R] All vertebrates have a hepatic portal sys-tem.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 26

[A] Entry of sperm brings about a nearrange- ment of materials of cytoplasmic egg. [R] Path of male nucleus is marked in ovum as copulation path.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 27

[A] Each myosin filament is composed of about 500 thread iike myosin molecules. [R] Actin combines with myosin to form a contractiie complex.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 28

[A] Haversian canals are inter connecting canals that run usually longitudinally through dense bone of vertebrates. [R] They contain nerves and blood. Each ca- nai serving a series of concentric IamellaeA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 29

[A] In vertebrates motor fibres to striped muscle. parasympathetic fibres to smooth muscle. and preganglionic sympathetic ii- bres are cholinergic. [R] Cholinergic designates the type of nerve fibre that releases acetylcho|ine from its end- ing when stimulated by a nerve impulse.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 30

[A] Lateral-iine organs are important in con- nection with aquatic mode of life. [R] They are highly supplied with branches of cranial nerves and they are entirely disap- peared in terrestrial forms.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 31

[A] lnsulin is not given orally. [R] Insulin is a macromolecule and is not absorbed by the mucosa layer.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 32

[A] The gall bladderis the chief place for bile storage. [R] Bile is concentrated 50 times in the gall bladder.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 33

[A] When platelets disintegrate 5-hydroxy tryptamine and histamine are liberated. [R] Speed of clot reaction is directly propor- tional to the number of platelets present.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 34

[A] Receptors located in tendons joints and skeletal muscle give information regarding the position and movement of various parts of body. [R] These are called Algest receptors.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 35

[A] Mammals lack mucous glands in their skin. [R] The epidermis has many layers of cells.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 36

[A] All terrestrial mammals are air breathers. [R] Because of terrestrial habitat. they have well developed iungs ior air breathing.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 37

[A] Albumin is associated with oedema. [R] It is produced by liver.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 38

(A] Somtaomedin secreted by liver is also called IGF. [R] Somatomedin and somatostatin are syn- onyms.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 39

(A] Corpus luteum is a temporary endocrine gland. [R] Corpus luteum does not secrete any hor- mone.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 40

[A] All body cells continuously obtain useful material from and dispose of their waste products into the external fluid medium. This is mainly maintained as a constancy and is termed excretion. [R] This is achieved by constant disposal or excretion of all waste products and refuse as well as useless materials from body into ex- ternal environments.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 41

[A] Jaws suspensorium in Mammals is craniostylic. [R] Articulation of lower jaw is at the man- dibular tossa of the squamous region of the temporal bone rather than at the quadrate.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 42

[A] Keratin is one of a group of fibrous in- soluble proteins (scelero proteins) found in ectodermal cells of animals as in hair horns and nails. Leather is almost pure keratin. [R] Cornification is a process occurring in vertebrate epidermis and epidermal struc- tures in which keratin replaces the cytoplasm of a cell.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 43

Assertion Smaller the organism higher is the rate of metabolism per gram weight. Reason The heart rate of a six-month-old baby is much lower than that of an old person.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 44

[A] The record of electric potential that is ini- tiated in the cardiac muscle is known as Electrocardiograph . [R] This is valuable for preliminary studies of heart muscles.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 45

[A] [A] ECG is a record of electrical activity of the heart that shows certain waves called PQRS and T waves. [R] It gives important information concerning the spread of excitation to the different parts of heart and helps in diagnosis of heart disor- ders.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Question 46

[A] Thiamine deficiency results in beriberi causing paralysis. [R] People eating raw fish may also suffer from paralysis due to the deficiency of vitamin B1. Cooked fish has no such effect.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

Accepted Answer

NA

Explore topic-wise InterviewSolutions in Current Affairs.

[A]: The tadpoles become giant tadpoles when fed on thiourea. [R]: Thiourea is an antithyroid substanceA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

[A]: Pinna of ear is quite elastic and pliable. [R]: Pinna Qf ear is made up of spongy bone.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

[A]: After operation, menstrual cycle in woman may be stopped. [R]: Ovarian hormones induce menstrual cycleA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

[A] : lnsulin is not given orally. [R]: Insulin is a macromolecule and is not absorbed by the mucosa layer.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

[A] : Mammals lack mucous glands in their skin. [R] : The epidermis has many layers of cells.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

[A]: Albumin is associated with oedema. [R]: It is produced by liver.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

(A]: Somtaomedin secreted by liver is also called IGF. [R]: Somatomedin and somatostatin are syn- onyms.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

(A]: Corpus luteum is a temporary endocrine gland. [R]: Corpus luteum does not secrete any hor- mone.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false

1.	[A] : In mammals, ends of presynaptic fibres are enlarged to form synaptic Knobs which are separated by a synaptic cleft from postsynaptic neurons. Each synaptic knob contains many mitochondria and small gran- ule-Iike synaptic vesicles filled with minute packets of the chemical that transmits im- pulses to postsynaptic neurons. [R]: The chemical transmitters are called neurohumors which proportionate to `K^+` in- flux.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - C

2.	[A] : Upon stimulation of a muscle cell, cal- cium ions `(Ca^(++))` are released from the sar- coplasmic reticulum. [R]: In reacting with a protein complex, `Ca^(++)` unmasks myosin binding sites on the ac-tin filaments.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

3.	[A]: in mammalian heart there is a very swift conduction of stimulation all over the body. [R]: Conduction of stimulation is caused by Purkinje fibres and Bundle of HisA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

4.	[A] : Deamination occurs by transaminase enzyme in kidney. [R]: Removal of COOH group from an amino acid is used in the production of urea.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - D

5.	[A]: A tadpole whose thyroid gland has been removed does not metamorphose into adult [R]: calcitonin and thyroxine are produced from thyroid gland, these hormones stimu- late protein synthesis for the development and growth of tadpole larva.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

6.	[A]: Taste buds are called the sense organs for olfaction [R]: Taste buds bear olfactory receptor cells which get stimulated by certain chemical substancesA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - D

7.	[A] : Testes are attached to abdominal wall by a ligament and under testosterone influence, it is drawn into scrotum. [R]: Leydig cells secrete androgens like test- osterone.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

10.	[A]: Osteoporosis is a bone disorder that re- sults from the loss of calcium and phosphate from the bone matrix. [R]: In osteoporosis, osteoblast activity is de- creased and new bone is deposited more slowly than it is removed by osteoclasts.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

11.	[A] : in amphibians heart is two chambered. [R]: The oxygenated blood is returned to the heart through sinus venosus.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - D

12.	[A] : Peyer s patches are derivatives of lym- phoid tissue. [R]: These are most numerous in the region of colon.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - C

13.	(A]: Kangaroo rat can live without drinking water. [R]: This is an adaptation to water scarcity in arid conditionsA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

14.	[A] : Synaptic vesicles fuse with membrane and release neurotransmitter molecules. [R]: Neurotransmitter attaches to receptor site and open sodium channels to allow so- dium to flow into post synaptic cell causing depolarisation.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

15.	Statememt 1 : In a Graafian follicle, the primary cell, the and the follicle cells may be regarded sibling cells. Statememt 2 : Both aride from the same parent cell, the oogonium, by mitotic divisions.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

16.	[A] : SA node is contraction centre or Pace Maker. [R]: Nodal fibres of SA node are embeded in the wall of right atriumA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

17.	[A] : Acetylchoiine allows a nerve cell to com- municate chemically with a muscle cell at neuromuscular junction. [R]: Acetyicholine diffuses across the junc- tion and binds to some receptors on mem- brane of muscle cell.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

18.	A : Transmission of the nerve impulse across a synapse is accomplished by neurotransmitters . R : Transmission across a synapse usually requires neuro transmitters because there is space , i.e., synaptic cleft, that separates one neuron from another .A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

19.	[A] : Tympanic membrane stretching across the aperture between skull bones or within an external meatus. [B]: This vibrates periodically and transmit- ting external air pressure changes to ear os- sicles of middle ear.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

20.	[A]: Emboly involves the invagination and in- volution through bottling process by the mesentoblast cells. [R]: Emboly is exhibited by the _formation, elongation and ultimate recession of the primitive streak.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

21.	[A] : Emboly involves the invagination and in- volution. Enmbloy is exhibited by the formation elongation and ultimate recession of the primitive streakA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

22.	[A] : Steroid hormones are similar to choles- terol in structure. [R]: Steroids contain phenanthrene ring struture.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

24.	[A] : The central nervous system regulates the release of saliva from the salivary glands. [R]: Salivary glands release lipase into the mouth and begins the digestion of starch.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - D

25.	[A]: A portal system is a complex of veins which begins in capillaries and ends in capil- laries before the blood which courses through it is retruned to the heart. [R]: All vertebrates have a hepatic portal sys-tem.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - C

26.	[A]: Entry of sperm brings about a nearrange- ment of materials of cytoplasmic egg. [R]: Path of male nucleus is marked in ovum as copulation path.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

27.	[A] : Each myosin filament is composed of about 500 thread iike myosin molecules. [R]: Actin combines with myosin to form a contractiie complex.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

28.	[A] : Haversian canals are inter connecting canals that run usually longitudinally through dense bone of vertebrates. [R]: They contain nerves and blood. Each ca- nai serving a series of concentric IamellaeA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

29.	[A] : In vertebrates, motor fibres to striped muscle. parasympathetic fibres to smooth muscle. and preganglionic sympathetic ii- bres are cholinergic. [R]: Cholinergic designates the type of nerve fibre that releases acetylcho\|ine from its end- ing when stimulated by a nerve impulse.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

30.	[A]: Lateral-iine organs are important in con- nection with aquatic mode of life. [R]: They are highly supplied with branches of cranial nerves and they are entirely disap- peared in terrestrial forms.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - A

32.	[A] : The gall bladderis the chief place for bile storage. [R]: Bile is concentrated 50 times in the gall bladder.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - C

33.	[A]: When platelets disintegrate, 5-hydroxy tryptamine and histamine are liberated. [R]: Speed of clot reaction is directly propor- tional to the number of platelets present.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - B

34.	[A] : Receptors located in tendons, joints and skeletal muscle give information regarding the position and movement of various parts of body. [R]: These are called Algest receptors.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
Answer» Correct Answer - C