In adults, curdling of the milk in small intestine occurs due to the action of

(a) rennin

(b) erypsine

(c) trypsin

(d) chymotrypsin

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The vitamin nicotinamide can be synthesized in our body from.

(a) tyrosine
(b) tryptophan
(c) valinc
(d) phenylalanine

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Excessive stimulation of vagus nerve in humans may lead to:

(a) hoarse voice

(b) peptic ulcers

(c) efficient digestion of proteins

(d) irregular contractions of diaphragm.

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Cattle fed with spoilt hay of sweet clover which contains dicumarol

(a) are healthier due to a good diet

(b) catch infections easily

(c) may suffer vitamin K deficiency and prolonged bleeding

(d) may suffer from beri beri due to deficiency of B vitamins

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Which one of the following pairs of the kind of cells and their secretion is correctly matched ?

(a) Oxyntic cells --- a secretion with pH between 2.0 and 3.0

(b) Alpha cells of islets of Langerhans ---- secretion that decreases blood sugar level

(c) Kupffer cells --- a digestive enzyme that hydrolyses nucleic acids

(d) Sebaceous glands --- a secretion that evaporates for cooling

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Which match is true?

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A child took sugar cane and sucked its juice. Regarding this which of the following match is correct ?

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Duodenum has characteristic Brunner's gland which secretes two hormones called

(a) prolactin, parathormone

(b) secretin, cholecystokinin

(c) enterocrinin, duocrinin

(d) gastrin, enterogastrone

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Vitamin B6 is also called:-
(a) thiamine
(b) pantothenic acid
(c) pyridoxine 
(d) retinol

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Which of the following is correct ?

(a) Paneth cells secrete pepsinogen

(b) Parietal cells secret hydrochloric acid

(c) Argentaffin cells secret mucus

(d) Chief cells secret gastrin

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