Animal Physiology MCQs Part III

1) The mechanical stimulation of the stomach wall by food induces
the secretion of the hormone

a) Gastrin
b) Secretin
c) Pancreozymin
d) Pepsinogen

2) An omasum is absent in the stomach of
a) All ruminants
b) Horses
c) Camels
d) Both b and c

3) The only mammal who ingests significant amounts of lactose
in milk even in the adult stage is

a) Monkey
b) Dog
c) Man
d) Cat

4) In the milk-coagulating process rennin is present in the
a) Calf-gastric juice
b) Gastric juice of human infants
c) Gastric juice of adult cows
d) Gastric juice of adult man

5) Proteases for digesting fibrous animal proteins are present

a) All carnivores
b) All herbivores
c) All vertebrates
d) Only some insects

6) The hormone which controls the enzyme producing function
of the pancreas is

a) Prosecretin
b) Secretin
c) Pancreozymin
d) None of these

7) The protective reflex of vomiting is controlled by the vomiting
centre in the

a) Medulla
b) Hypothalamus
c) Diaphragm
d) Stomach muscles

8) Hyperacidity of the gastric juice with its destructive
pepsin causes

a) Stomach canceration
b) Gastric ulcer
c) Duodenal ulcer
d) Both b and c

9) Casein is
a) A bacterium
b) Milk-sugar
c) Milk proteins
d) Fat

10) The ultimate effect of enterokinin secretion is
a) Motility of intestinal villi
b) Release of bile from the gall bladder
c) Secretion of gastric juice
d) Secretion of succus entericus

11) Protein digestion by trypsin occurs in
a) The acidic medium of the stomach
b) The alkaline medium of the stomach
c) The acidic medium of the duodenum
d) The alkaline intestinal medium

12) Trypsin, the proteolytic enzyme is secreted by the
a) Stomach
b) Duodenum
c) Pancreas
d) Ileum

13) The best source of vitamin A is
a) Carrot
b) Honey
c) Apple
d) Cabbage

14) The dental formula of milk dentition in man is
a) 2/2,1/1,2/2,3/3
b) 1/1,0/0,0/0,3/3
c) 2/2,1/1,0/0,2/2
d) 3/3,1/1,3/4,3/3

15) In the stomach HCl is secreted by
a) Zymogen cells
b) Oxyntic cells
c) Mucus cells
d) All of these

16) The chemical name of vitamin K is
a) Tocopherol
b) Nicotinamide
c) Phylloquinone
d) Thiamine

17) A person relying on a diet of milk, eggs and bread is likely
to suffer from

a) Scurvy
b) Night blindness
c) Rickets
d) Beriberi

18) Herbivorous animals are able to digest cellulose as
a) Their molar and premolar teeth are adapted to grind and crush the food
b) Cellulose-digesting bacteria are harboured in their caecum
c) Cellulose digesting enzymes are present in the gastric juice
d) They have an enormously long alimentary tube

19) The pH of the food is brought to … by HCl
a) 0.5
b) 2.5
c) 1.5
d) 3

20) The maximum number of teeth found in placental mammals is
a) 32
b) 54
c) 44
d) 22

21) If a person has deficiency of rhodopsin synthesis he should
be given

b) Carotene and papaya
c) Yeast
d) Green vegetables

22) If a man eats boiled potatoes
a) The starch in it is indigestible
b) The cellulose present is digested by cellulase
c) It has excessive fats digested by lipase
d) It has DNA digested by nuclease

23) The largest gland in the human body is the
a) Gall bladder
b) Liver
c) Pancreas
d) Brain

24) One of the following compounds does not provide energy but
is still required by the body in small quantities:

a) Antigen
b) Antibody
c) Vitamin
d) Carbohydrates

25) Vitamin K is useful for
a) Converting prothrombin to thrombin
b) Synthesis of prothrombin
c) Calcium combination with prothrombin
d) All the above

26) Which of the following organs in ruminants release HCl and

a) Abomasum
b) Reticulum
c) Omasum
d) Rumen

27) The essential fatty acid in the diet of an experimental animal is
a) Linoleic acid
b) Stearic acid
c) Palmitic acid
d) Oleic acid

28) Glycogen is stored in
a) The liver
b) Muscles
c) Both
d) Blood

29) In gluconeogenesis
a) Glucose is polymerized into glycogen
b) Glycogen is broken into glucose
c) Carbohydrates are synthesized from fats and proteins
d) Glucose is broken into pyruvic acid

30) Food poisoning is caused by
a) Clostridium botulinum
b) Clostridium tumlaceae
c) Salmonella typhosa
d) Synchrytium endobioticum

31) In which of the following does the caecum become large for digestion
of cellulose with the help of symbiotic bacteria?

a) Cat
b) Rabbit
c) Man
d) Frog

32) The factor which governs the absorption of digested food
by intestinal villi is

a) Peristalsis
b) Osmosis
c) Emulsification
d) Selective absorption

33) Cellulose digestion in herbivorous mammals occurs in the
a) Villi of the intestine
b) Pyloric caecae
c) Vermiform appendix
d) Vermiform appendix and caecum

34) The burning feet syndrome is due to deficiency of
a) Vitamin D
b) Vitamin A

glands are present in the

a) Oesophagus
b) Duodenum
c) Ileum
d) Stomach

is the masticatory apparatus of the

a) Sea-lily
b) Sea-star
c) Sea-cucumber
d) Sea-urchin

37) Oxyntic cells secrete
a) HCl
b) NaOH
c) Pepsin
d) Trypsin

38) One of the factors required for the maturation of erythrocytes

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

39) Which one of the following is a protein deficiency disease?
a) Ischemia
b) Cirrhosis
c) Kwashiorkor
d) Night blindness

40) The contraction of the gall bladder is due to
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Enterogastrone

41) Xeropthalmia is caused by the deficiency of
a) Vitamin E
b) Vitamin D
c) Vitamin B
d) Vitamin A

42) Esterase belong to the group
a) Transferases
b) Hydrolytic enzymes
c) Oxidation reduction enzymes
d) Carboxylating enzyme

43) The food after its passage through the small intestine
forms an alkaline fluid emulsion called

a) Faeces
b) Chyme
c) Bolus
d) Chyle

44) The submucosa is thickest in the
a) Oseophague
b) Duodenum
c) Stomach
d) Rectum

disease is associated with

a) Abnormal protein metabolism
b) Abnormal carbohydrate metabolism
c) Abnormal fat metabolism
d) Malnutrition

46) If the pancreas is removed, the compound which remains
undigested is

a) Carbohydrate
b) Fat
c) Protein
d) All of these

47) What is common among amylase, rennin and trypsin?
a) These are all proteins
b) These are all proteolytic enzyme
c) These are produced in stomach
d) These act in an alkaline pH

48) The inner lining of the small gut, stomach and liver is composed

a) Simple squamous epithelium
b) Simple columnar epithelium
c) Simple cuboidal epithelium
d) Compound epithelium

49) Which of the following is related with vitamin

b) NAD

50) Maximum food absorption takes place in the
a) Ileum
b) Colon
c) Rectum
d) Stomach

51) The number of molar teeth that appear twice in man is
a) 8
b) 12
c) 20
d) 32

52) Osteomalacia occurs due to the deficiency of
a) Vitamin A
b) Vitamin B
c) Vitamin C
d) Vitamin D

53) The anus in vertebrates opens into a central chamber
that is called the

a) Caeca
b) Rectum
c) Cloaca
d) Ileum

54) In mammals, the digestion of starch starts from the
a) Mouth
b) Stomach
c) Oesophagus
d) Duodenum

55) The richest sources of vitamin A are
a) Pumpkin and carrots
b) Tomatoes and onions
c) peppers and potatoes
d) Green peas and beans

56) If the pH of the stomach is 1.6 then which enzyme will
digest protein?

a) Trypsin
b) Pepsin
c) Amylase
d) Erepsin

57) Which statement is correct?
a) Neutral starches are of D type
b) Neutral sugars are of D type
c) All vitamins are obtained from food
d) A few vitamins can be synthesized in human body

58) The antixeropthalmic vitamin is
a) Vitamin A
b) Vitamin D
c) Vitamin E
d) Vitamin K

59) High cholesterol patients are advised to use
a) Fatty oils and butter
b) Cheese, Dalda and ghee
c) Ghee, butter and oils
d) Groundnut oil, margarine and vegetable oils

60) An exclusively carbohydrate splitting enzyme
is secreted by the

a) Liver
b) Zymogen cells and gastric glands
c) Salivary glands
d) Crypts of Lieberkuhn

61) Food vacuole of Amoeba is analogous to which
organ of man?

a) Lung
b) Stomach
c) Kidney
d) Alimentary canal

62) Emulsified fat is digested by
a) Lipase
b) Hydrolase
c) Bile salt
d) Bile pigments

63) The best source of vitamin C is
a) Glycinemax
b) Arachis hypogea
c) Citrus indica
d) Embilca officinalis

64) The glycosidic link is broken in the digestion of
a) Protein
b) Lipid
c) Starch
d) All of these

duct is the duct of

a) Parotid gland
b) Submaxillary gland
c) Submandibular salivary gland
d) Both b and c

66) In the process of digestion in the
human body, the carbohydrates are broken down

a) Lipolytic enzymes
b) Gastric lipase
c) Amylolytic enzymes
d) Proteolytic enzymes

67) If all the bacteria of the intestine die, what will
be the effect on the body?

a) Excessive tiredness
b) Blindness
c) There will be no synthesis of vitamin B complex
d) Excretion will be affected

68) Digestion in Hydra is
a) Intracellular
b) Extracellular
c) First extracellular and then intracellular
d) First intracellular and then extracellular

69) The stomach in vertebrates is the chief site
for digestion of

a) Fats
b) Proteins
c) Carbohydrates
d) All of these

70) Vitamin C or ascorbic acid prevents
a) Rickets
b) Pellagra
c) Scurvy
d) Antibody synthesis

71) Digestion of extracellular material is brought
about inside the cell in

a) Cytopyrosomes
b) Residual bodies
c) Heterophagosomes
d) Primary lysosomes

72) Which of the following is absorbed In the ileum?
a) Fat
b) Bile salt
c) Glucose
d) Vitamin K

73) Alkaline chyle is
a) More dilute than chyme
b) More concentrated than chyme
c) Similar to chyme
d) Similar to saliva in pH

74) HCl present in the gastric juice converts
a) Pepsinogen to pepsin
b) Polypeptides to peptides
c) Disaccharides to monosaccharides
d) Proennin to rennin

75) The tape worm has no digestive system, because
a) It is a parasite
b) It absorbs food from the general body surface
c) It does not need food
d) It lives in the intestine

76) The site of protein digestion is the
a) Gullet
b) Stomach
c) Small intestine
d) Oral cavity

77) Which of the following does not produce
any digestive enzyme?

a) Mouth
b) Liver
c) Pancreas
d) Gastric mucosa

78) Prolonged deficiency of nicotinic acid causes
a) Pellagra
b) Anaemia
c) Osteomalacia
d) Xerophthalmia

79) The crypts of Lieberkuhn secrete
a) Insulin
b) Pepsin
c) Saliva
d) Succus entericus

80) Tocopherol is constituted by the three compounds

a) Vitamin B
b) Vitamin E
d) Vitamin K

81) Paneth cells are found in the
a) Salivary gland
b) Stomach
c) Pancreas
d) Intestine

82) Calcium deficiency in the body occurs in
the absence of

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

83) Fatty acid and glycerol are first taken
up from the alimentary canal by

a) Villi
b) Blood capillaries
c) Hepatic portal vein
d) Lymph vessels

84) One of the digestive juices that lacks enzymes
but aids digestion is

a) Bile
b) Succus entericus
c) Chyle
d) Chyme

85) Which pair below matches the deficient nutrient with the resulting disease in which the patient develops swollen lips, thick pigmented skin of hands and legs, and irritability?
a) Iodine-goitre
b) Thiamine-beri beri
c) Protein-kwashiorkor
d) Nicotinamide-pellagra

86) Taste buds to detect bitterness are located
a) On the tip
b) On the lateral edges
c) On the anterior upper portion
d) At the posterior median part

87) One of the following is applicable to
the pancreas:

a) 2 enzymes and one hormone
b) 3 enzymes and 3 hormones
c) 3 enzymes and 2 hormones
d) 3 enzymes and one hormone

88) The structure that prevents the entry
of food into the respiratory tract is the

a) Pharynx
b) Larynx
c) Epiglottis
d) Glottis

89) Bile salts are released in the duodenum
where they are necessary for the absorption

a) Nutrients of chyme
b) Fats
c) Nutrients of chyle
d) All the above

90) Bile primarily acts on
a) Proteins
b) Carbohydrates
c) Sugars
d) Fats

91) In which of the following groups does
intra-cellular digestion occur?

a) Sponges
b) Molluscs
c) Insects
d) Vertebrates

92) The HCl secreted in the stomach
a) Kills micro-organisms
b) Digests the carbohydrates
c) The fibrous content of the food is loosened
d) All the above

93) The term given to rhythmic waves of contraction
passing backwards over the gut wall resulting
in the pushing of the food is

a) Regurgitation
b) Emulsification
c) Perilstasis
d) Deglutition

94) Night blindness is due to the deficiency
of vitamin

a) B
b) A
c) D
d) K

95) The correct matching set of gland and
secretion is

a) Adrenal cortex – vasopressin
b) Master gland – thyroxin
c) Islet of langerhans – secretion
d) Salivary glands – amylase

96) As the hydrogen ion concentration increases,
the pH

a) Increases
b) Decreases
c) Stays constant
d) Shows no definite relationship

97) Trypsin is an enzyme which changes
a) Polysaccharides into disaccharides
b) Peptides into amino acids
c) Peptones into peptides
d) Sucrose into glucose

98) A person with bleeding gums should daily

a) Lemons
b) Carrots
c) Milk
d) Butter

99) If liver becomes non-functional, the percentage
of which substance will increase in the blood:

a) Ammonia
b) Urea
c) Uric acid
d) Protein

100) The deficiency of which of the following
elements in drinking water causes the
dental disease characterised by mottling
of teeth

a) Boron
b) Flourine
c) Chlorine
d) Mercury


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