Animal Physiology MCQs Part II

1) In which of the following organisms is intra cellular digestion alone seen?
a) Porifera
b) Coelenterata
c) Amoeba
d) Man

2) Which of the following animals has a gastric mill?
a) Cockroach
b) Prawn
c) Man
d) Earthworm

3) The digestive gland in prawns is the
a) Liver
b) Gastric gland
c) Hepato pancreas
d) Salivary gland

4) Human dentition is
a) Heterodont, Monophyodont, and thecodont
b) Heterodont, diphyodont and thecodont
c) Homodont, polyphyodont, pleurodont
d) Homodont, diphyodont, and thecodont

5) Mucin in saliva helps mainly to
a) Digest starch
b) Lubricate food
c) Convert the medium to neutral
d) Convert food into smaller particles

6) Which of the following is a common passage for food and air?
a) Buccal cavity
b) Oesophagus
c) Trachea
d) Pharynx

7) Which of the following is the true stomach in ruminants?
a) Rumen
b) Omasum
c) Reticulum
d) Abomasum

8) In ruminants bacteria and protozoa which carry out fermentation of cellulose are present in
a) Caecum and colon
b) Rumen and reticulum
c) Omasum and abomasum
d) Duodenum and ileum

9) The function of the abomasum is
a) Digestion of cellulose
b) Absorbs water and bicarbonates
c) Partial digestion of protein
d) Absorption of digested food materials

10) Which of the following increases the surface area for absorption?
a) Villi
b) Vermiform appendix
c) Microvilli
d) Both villi and microvilli

11) The common bile duct opens into the
a) Pyloric stomach
b) Duodenum
c) Ileum
d) Colon

12) The pancreas is located
a) In the bend of the duodenal loop
b) Below the liver in between the two lobes of liver
c) In the right upper part of abdomen just below the diaphragm
d) In the mediastinal space

13) Which of the following is the temporary storage organ of bile?
a) Pancreas
b) Spleen
c) Gall bladder
d) Colon

14) Animals in which the main excretory product is urea are called
a) Ametelic
b) Ammonotelic
c) Ureotelic
d) Uricotelic

15) Kidneys are not the only organs of excretion. Their work is supplemented
by the

a) Liver
b) Skin
c) Heart
d) Large intestine

16) The Malpighian body consists of
b) Uriniferous tubule
c) Glomerulus and uriniferous tubule

17) Ammonia is the chief nitrogenous excretory material in
a) Reptiles
b) Turtles
c) Amphibians
d) Tadpole

18) The morphological and physiological unit of the vertebrate kidney is the
a) Ureter
b) Nephridium
c) Uriniferous tubule (nephron)
d) Seminiferous tubule

19) In the kidney, glucose is mainly absorbed by the
b) Loop of Henle
c) Proximal convoluted tubule
d) Distal convoluted tubule

20) Which of the following enzymes helps in the production of urea?
a) Uricase
b) Urease
c) Arginase
d) None of the above

21) Excretory products of the mammalian embryo are eliminated by the
a) Placenta
b) Amniotic fluid
c) Allantois
d) Ureters

22) A condition in which urine contains blood is called
a) Creatinine
b) Anuria
c) Hematuria
d) Ketonuria

23) In prawns, the excretion is performed by
a) Malpighian tubules
b) Green glands
c) Glomeruli
d) Nephridia

24) The function of kidneys in mammals is to excrete
a) Extra salts, urea and excess water
b) Extra urea, extra water and extra amino acids
c) Extra urea, extra carbohydrates and extra water
d) Extra urea, extra salts and extra sugar

25) The kidney produces a proteolytic enzyme called
a) Erepsin
b) Renin
c) Rennin
d) Trypsin

26) Discharge of bile pigments in the urine indicates
a) Anaemia
b) Diabetes
c) Jaundice
d) Rickets

27) The plasma resembles the filtrate produced in the glomerulus in its composition except for the presence of
a) Chlorides
b) Amino acids
c) Glucose
d) Proteins

28) When a person is suffering from poor reabsorption which one
of the following will not help maintain the blood volume?

a) Decreased glomerular filtration
b) Increased ADH secretion
c) Decreased arterial pressure in kidneys
d) Increased arterial pressure of kidneys

29) The reabsorption of water in the tubules of the nephron takes place

a) Osmosis
b) Simple diffusion
c) Filtration
d) Active transport

30) Which organ of earthworm is analogous to our kidney?
a) Clitellum
b) Nephridium
c) Ovary
d) Testis

31) Who explained the Ornithine cycle?
a) Henseleit
b) Krebs
c) Krebs and Henseleit
d) Ornithine

32) Formation of urine is called
a) Diabetes insipidus
b) Diuresis
c) Glomerular filtration
d) Haemoptysis

33) Under normal conditions which one is completely reabsorbed
in the renal tubule?

a) Urea
b) Uric acid
c) Salts
d) Glucose

34) The columns of Bertini in the kidneys of mammals are formed
as an extension of the

a) Medulla into the cortex
b) Cortex into the medulla
c) Medulla into the pelvis
d) Pelvis into the ureter

35) In the kidney, the formation of urine involves the following
processes arranged as:

a) Glomerular filtration, reabsorption and tubular secretion
b) Reabsorption, filtration and secretion
c) Secretion, absorption and filtration
d) Filtration, secretion and reabsorption

36) In fever, too much of sugar may increase the elimination in urine

a) NaCl
b) Glucose
c) Uric acid
d) Phosphates

37) The snakes living in deserts are mainly
a) Ammonotelic
b) Aminotelic
c) Ureotelic
d) Uricotelic

38) The cortex extending between the medullary pyramids in the kidney of a rabbit
are called the

a) Pelvis
b) Renal pyramids
c) Renal columns of Bertini
d) None of the above

39) In silicosis the silica particles can be seen to be
a) needle shaped crystals by light microscopy
b) needle shaped under polarized light
c) Maltese cross shaped crystals by light microscopy
d) maltese cross shaped crystals under polarized light

40) What was the cause of ‘Yusho’ disease which occurred in 1968 from a leak in a caning factory?
a) Smoke
b) Industrial waste
c) Ammonia
d) Detergents

41) Which of the following animal has no gall bladder?
a) Camel
b) Deer
c) Horse
d) Tiger

42) Digestion in the intestine is completed by the action of
a) Pancreatic juice
b) Intestinal juice
c) Bile
d) All of these

43) Saliva contains
a) Sucrase
b) Pepsin
c) Amylase
d) Lactase

44) Ptyalin is present in the saliva of
a) Cows
b) Buffaloes
c) Lions
d) Pigs

45) Chewing food helps in
a) Digesting food materials
b) Increasing the surface area for the action of enzymes
c) Keeping the food in acidic medium
d) Increased secretion of ptyalin

46) Ptyalin causes hydrolysis of starch into
a) Maltose
b) Isomaltose
c) "limit" dextrins
d) All of these

47) If you chew a piece of bread slowly, it will taste sweeter after some time because of
a) Production of maltose by the action of ptyalin
b) Production of glucose
c) Production of sucrose
d) Saliva tasting sweeter

48) Generally the proteolytic enzymes are produced in the inactive form because if synthesised in the active form they would
a) Digest fat and carbohydrate
b) Digest fat and fat soluble vitamins
c) Hydrolyse cellular and extracellular protein of the organism
d) None of these

49) Carbohydrate digesting enzyme is absent in
a) Saliva
b) Pancreatic juice
c) Gastric juice
d) Intestinal juice

50) HCl activates inactive
a) Trypsinogen
b) Pepsinogen
c) Chymotrypsinogen
d) Carboxypeptidase

51) The optimum pH of gastric juice is
a) 6.5 – 7
b) 8 – 8.5
c) 1 – 2
d) 7 – 8

52) Pepsin converts protein into
a) Amino acids
b) Poly peptides
c) Dipeptides
d) Proteoses and peptones

53) The pancreatic proteolytic enzyme trypsinogen is activated into active trypsin by
a) Enteropeptidase
b) HCl
c) Enterogastrone
d) Bile

54) The alkaline pH for the action of trypsin is provided by
a) Bile
b) Bicarbonates of pancreatic juice
c) HCl
d) Both A and B

55) Which of the following is the activator present in intestinal juice?
a) Enteropeptidase
b) Aminopeptidase
c) Lipase
d) Dipeptidase

56) Which of the following is the principal enzyme for digestion of fat?
a) Gastric lipase
b) Intestinal lipase
c) Pancreatic lipase
d) Bile

57) The entry of food into the stomach mechanically stimulates it to produce a hormone named
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Duocrinin

58) Which of the following is antagonistic to gastrin?
a) Enterocrinin
b) Enterogastrone
c) Secretin
d) Glucagon

59) Which of the following is associated with the transport of fat and fat soluble vitamins?
a) Hepatic portal
b) Lacteal
c) Hepatic vein
d) Capillary net work

60) Absorption of nutrients passively by simple diffusion requires
a) Nutrients to be at higher concentration in the intestinal lumen than outside
b) Molecules should be small and water soluble
c) Concentration of nutrients should be at lower concentration in the intestinal lumen than outside
d) Both A and B

61) The calorie value of proteins is
a) 4.1 k cal
b) 4 kcal
c) 5.65 kcal
d) 9 kcal

62) Which of the following is an essential amino acid?
a) Valine
b) Tyrosine
c) Proline
d) Aspartic acid

63) The hormone which stimulates the contraction of gall bladder and the relaxation of the sphincter of Oddi to release the bile stored in gall bladder is
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Pancrcozymin

64) Carbohydrates yield far more energy than proteins or fats for each litre of oxygen consumed because
a) Carbohydrate molecules contain relatively less oxygen than the others
b) Carbohydrates molecules contain relatively more oxygen than the others
c) Proteins molecules contain more oxygen than carbohydrate
d) None of these

65) Which of the following is the duct of the parotid gland?
a) Sub maxillary
b) Submandibular

66) Pepsin differs from trypsin in that it digests
a) Protein in an alkaline medium in the stomach
b) Protein in an acidic medium in the stomach
c) Protein in an acidic medium in the intestine
d) Protein in an alkaline medium in the intestine

67) intrinsic
factor is required for the absorption of

a) Fat soluble vitamins
c) Vitamin K
d) Vitamin E

68) Some animals eat their faeces to digest cellulose contents again. These
are called

a) Sanguivore
b) Coprophagous
c) Omnivorous
d) Detritivorous

69) The amino acids produced by digestion of proteins are absorbed from
the intestine through

a) Lacteals
b) Blood capillaries in the villi
c) Lacteals and blood capillaries in the villi
d) Rectum

70) Prolonged thiamine deficiency in the diet leads to
a) Pellagra
b) Haemorrhage
c) Anaemia
d) Beriberi

71) During prolonged fasting
a) First fats are used up, followed by carbohydrates from liver and muscles and protein in the end
b) First carbohydrates are used up, followed by fats and proteins towards the end
c) First lipids are used up, followed by proteins and carbohydrates toward the end
d) First proteins are used up followed by carbohydrates and lipids

72) Which one is the correct match?
a) Calcium – beri-beri
b) Iron – haemophilia
c) Na – Addisons diseases
d) P – bone fragility

73) Calciferol is
a) Vit. A
b) Vit. C
c) Vit B
d) Vit D

74) The maximum energy is released on the respiratory breakdown of
a) Protein
b) Fat
c) Carbohydrate
d) Nucleic acid

75) Which of the following minerals helps in erythropoiesis?
a) Fluorine
b) Cobalt
c) Copper

76) Which of the following diseases is caused by deficiency of protein and

a) Kwashiorkor
b) Marasmus
c) Bleeding disease
d) Scurvy

77) Which is the major ion inside the cell?

78) Blindness in children all over the world is due to the deficiency of
a) Vit. A
b) Vit C
c) Vit.E
d) Vit. K

79) Which of the following is Vit ?
a) Ascorbic acid
b) Thiamin
c) Riboflavin
d) Cobalamine

80) Nicotinamide deficiency produces
a) Cheilosis
b) Pellagra
c) Beriberi
d) Nyctalopia

81) Calcium deficiency occurs in the absence of vitamin
a) Vit.D
b) Vit. E
c) Vit A
d) Vit. K

82) The end products of carbohydrate digestion are
a) Galactose, maltose, fructose
b) Maltose, fructose, lactose
c) Glycogen, glucose, galactose
d) Glucose, fructose, galactose

83) Pick the odd one out
a) Glucagon
b) Secretin
c) Gastrin
d) Ptyalin

84) Vitamin C is important in
a) Growth of bones
b) Reversing anaemia
c) Wound healing
d) Synthesis of visual pigments

85) One cause of obstructive jaundice is
a) Defective pancreas
b) Gall stone
c) Liver deficiency
d) By bile remaining in blood

86) The foul-smelling gases and toxic substances in undigested food are
formed by

a) HCl
b) Enzymes
c) Vitamins
d) Colon bacteria

87) The importance of water in the animal body is
a) In reproduction
b) Keeping the body cooled
c) As a solvent
d) All of these

88) The food bolus being digested in the acidic medium is termed
a) Bile bolus
b) Acidic bolus
c) Chyle
d) Chyme

89) Chymotrypsin is a/an
a) Proteolytic enzyme
b) Fat digesting enzyme
c) Vitamin
d) Hormone

90) The end-products of carbohydrate digestion are
a) Glycogen
b) Glycerol
c) Monosaccharides
d) Disaccharides

91) The pH of bile is
a) 4.4
b) 5.5
c) 6.6
d) 7.7

92) The following amino-acids are semi- indispensable for nutrition in man
a) Aspartic and glutamic acid
b) Proline and hydroxyproline
c) Arginine and histidine
d) Valine and leucine

93) Sucrose is present in
a) Milk
b) Honey
c) Sugarcane
d) Orange

94) Micronutrients are
a) Less important in nutrition than macronutrients
b) As important as macronutrients
c) May be omitted from plant culture media without detrimental effect
d) Having only a minor nutritional role

95) The appetite and satiety centres of the brain are located in the
a) Cerebellum
b) Hypothalamus
c) Cerebral hemisphere
d) Medulla oblongata

96) Biliverdin and bilirubin are
a) Products of digestion
b) Components of bile
c) Food components
d) Components of pancreatic juice

97) The best source of protein for vegetarians in India is
a) Pulses
b) Potato
c) Egg
d) Green vegetables

disease was due to the deficiency of

a) Vitamin A
b) Vitamin B
c) Vitamin C
d) Vitamin D

99) The tusks of the elephant are
a) The two incisors of the upper jaw
b) The incisors of the lower jaw
c) The first upper premolars
d) The first upper molars

100) The highly alkaline pancreatic juice has a pH range of
a) 6.5—7.5
b) 7.5—8.5
c) 8.5—9.5
d) 9.5—10


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