Indicate the site, labelled a. through e., at which digestion of each of the three main categories of foodstuffs commences and is completed. (Options may be used more than once or not at all.)
-carbohydrate digestion begins
A)mouth
B)stomach
C)small intestine lumen
D)intracellularly in the small intestine brush border
E)colon

Question

Quizplus · Accepted Answer

Carbohydrate digestion begins in the mouth with the action of salivary amylase.

Answer: C and D
 Carbohydrate digestion is completed in the lumen of the small intestine with the help of pancreatic amylase and brush border enzymes.

Answer: B and E
 Stomach and colon do not play significant roles in carbohydrate digestion.

Indicate the Site, Labelled A