Absorption in Small Intestine

What are the units of absorption in the small intestine of man?

Assertion :- Small intestine is very long and has plica circularis & villi Reason : All these increase internal surface area of small intestine for efficient food absorption.

Assertion :- Small intestine is very long and has plica circularis & villi. Reason:- All these increase internal surface area of small intestine for efficient food absorption.

First Portion of small intestine is called

Explain the process of digestion in small intestine.

(a) Compare the length of small intestine in herbivore and carnivore animal. (b) Mention any two structural modifications in small intestine which helps in absorption .

Increased secretions and decreased absorption in intestinal region results in