AP BIOLOGY

Detailed explanation-1: -There are two types of carbohydrates that can be digested by the human digestive system– sugar and starch. Sugar is broken down in the gastrointestinal tract by the small intestine and three enzymes present in the mouth, namely, Lactase, Sucrase, and Maltase. The chemical digestion of carbohydrates begins in the mouth.

Detailed explanation-2: -Some enzymatic digestion of starch occurs in the mouth, due to the action of the enzyme salivary amylase. This enzyme starts to break the long glucose chains of starch into shorter chains, some as small as maltose.

Detailed explanation-3: -The chemical digestion of two groups of molecules, carbohydrates, and fats, also begins in the mouth. Carbohydrates are the sugars and starches we eat, and an enzyme called salivary amylase begins the chemical breakdown of starches as we chew our food.

Detailed explanation-4: -The digestion of carbohydrates begins in the mouth. The salivary enzyme amylase begins the breakdown of food starches into maltose, a disaccharide.

Detailed explanation-5: -Digestion of Carbohydrates Digestion of starches into glucose molecules starts in the mouth, but primarily takes place in the small intestine by the action of specific enzymes secreted from the pancreas (e.g. -amylase and -glucosidase).