Correct Answer - b
The human saliva contains an enzyme called salivary amylase, which breaks down the starch present in food into suger. The digestion of starch(carbohydrates) begins in the mouth. In case , saliva is lacking, it will affect the break down of starch.
The protein digestion beginon begins in the stomuch by the enzyme pepsin and completes in small intestine by enzyme trypsin, chymotrypsin, carboxypeptidases, aminopeptidases and dipeptidases.
The fats are broken down into small particles y bile in small intestine and then broken down into fatty acids and glycero by lipases present in pancreeatic juice.
Absorption of vitamins takes place in the small intestine.
