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Digestion and Absorption

Multiple Choice Questions

41.

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

peristalsis
epiglottis
osmosis
cyclosis

42.

Villi are present in

large intestine
small intestine
colon
stomach

43.

Fatty acids are absorbed by the

lacteals
pylorous
colon
capillaries

44.

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

peptic cells
goblet cells
oxyntic cells
gastric cells

45.

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

caecum
stomach
appendix
rumen

46.

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

47.

The intestinal juice, succus entericus is secreted by

Brunner's gland
Kupffer cells
crypts of Leiberkuhn
goblet cells

48.
Below freezing point, the pepsin

becomes over activated

gets destroyed

remains unaffected

gets inactivated

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.