Multiple Choice Questions

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Below freezing point, the pepsin

  • becomes over activated

  • gets destroyed

  • remains unaffected

  • gets inactivated


D.

gets inactivated

Pepsin is a non- specific protease. It gets activated at acidic pH (2.0) and is deactivated at neutral or alkaline pH. This is because pepsin moves from the stomach into the duodenum. 

The freezing temperature is a temperature at which liquid becomes solid. Pepsin gets inactivated below freezing point because low temperature inactivates the enzymes and increase the frequency of collisions and the formation of enzyme- substrate complex.


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Wharton's duct is the duct of

  • submandibular salivary gland

  • parotid gland

  • sublingual gland

  • all of these


Food is move along the alimentary canal by the contraction known as

  • peristalsis

  • epiglottis

  • osmosis

  • cyclosis


Fatty acids are absorbed by the

  • lacteals

  • pylorous

  • colon

  • capillaries


Villi are present in

  • large intestine

  • small intestine

  • colon

  • stomach


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In horses, rabbits, hares the cellulose gets digested in the

  • caecum

  • stomach

  • appendix

  • rumen


Hydrochloric acid in the stomach is secreted by some special type of cells called

  • peptic cells

  • goblet cells

  • oxyntic cells

  • gastric cells


The pylorous is the constricted part of the alimentary canal which is situated between

  • stomach and duodenum

  • oesophagus and stomach

  • duodenum and ileum

  • ileum and rectum


Cholesterol is a precursor for each of the following except

  • bile salts

  • vitamin D

  • insulin

  • steroids


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The intestinal juice, succus entericus is secreted by

  • Brunner's gland

  • Kupffer cells

  • crypts of Leiberkuhn

  • goblet cells


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