Question

Up to how much the microvilli in the small intestine increases the relative surface area of the small intestine?

(a) 3 times

(b) 30 times

(c) 100 times

(d) 600 times

The question was posed to me in quiz.

I want to ask this question from Drugs Absorption from Non Oral Extravascular Sites in portion Absorption of Drugs of Drug Biotechnology

Answer 1

Correct option is (d) 600 times

Easiest explanation: The surface of villi protrudes to several small projections known as microvilli. About 600 projections come up from each absorptive cell that lines the wall of villi. Thus it increases the surface area to about 600 times.