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Ptyalin is inactive by a component of ga...

Ptyalin is inactive by a component of gastric juice

A

Pepsin

B

Mucus

C

Rennin

D

HC

Text Solution

Verified by Experts

The correct Answer is:
D
(b) The bacteria are found in the colon which infart are the main source of vitamin-`B_(12)` as vitamin -`B_(12)` is not found in plants . Few micro-organism of the rumen of stomach of ruminat mammals also synthesize large quantity of viatmin-`B_(12)`
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