major digestive work in the stomach is the initial breakdown of:
A)starch.
B)proteins.
C)fat.
D)vitamins.

Question

Quizplus · Accepted Answer

The stomach's main function is to break down proteins through the secretion of hydrochloric acid and enzymes such as pepsin. Starch begins to break down in the mouth through the action of amylase, while fat is primarily broken down in the small intestine. Vitamins do not require significant digestive work in the stomach. The major digestive work that occurs in the stomach is the initial breakdown of proteins by the enzyme pepsin. Starch digestion primarily occurs in the mouth and fat digestion primarily occurs in the small intestine. Vitamins do not require significant digestive work and are absorbed in the small intestine.

Major Digestive Work in the Stomach Is the Initial Breakdown