During chemical digestion
a. foods are chopped and ground up and then mixed by segmentation
b. mastication, deglutition and segmentation of foods occurs
c. digestive products of macromolecular substances are transported through the mucosal into the blood/lymph
d. glycolysis, the krebs cycle and oxidative phosphorylation produce atp
e. large macromolecules are hydrolyzed into small subunits

The correct answer is option E.

Explanation:

Digestions refers to the breaking down of food (larger molecules) into smaller absorb-able units.

Chemical digestion refers to digestion of food with the help of chemicals such enzymes, acid, and bile.

Enzymes are the main type of chemicals which hydrolysis (breaking down of compound with the help of water) the macro-molecules such as polysaccharides, polypeptides, et cetera into smaller and simpler units.

For example, amylase hydrolyse polysaccharides into smaller units such as maltose and glucose; trypsin, chymotrypsin, pepsin are enzymes which hydrolyze polypeptides into amino acids, nucleases are the enzymes which help in hydrolysis of nucleic acids, et cetera.

Bile and lipases help in emulsification of fats.

Thus, the correct answer is option E.

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explanation: