Enzyme ptyalin acts on starch in the?

A. oesophagus
B. large intestine
C. mouth
D. stomach

Correct Answer:

Option C – mouth

Explanation

Options A and B are not correct.
Option C is correct. This is because the mouth is the location where enzyme ptyalin acts on starchy food.
Option D is wrong. This is because stomach is location for the action of renin and pepsin enzymes.