Which of the Following is True Regarding Digestion and Absorption

Question

Which of the following is true regarding digestion and absorption in the stomach?
A) Carbohydrate digestion begins in the stomach.
B) Small proteins can be absorbed with the help of pepsin.
C) Lipid digestion begins in the stomach.
D) Protein digestion begins in the stomach.
E) Digestion is complete after chyme moves out of the stomach.

Accepted Answer

Proteins are broken down into smaller peptides and amino acids in the stomach due to the presence of an enzyme called pepsin, which is activated by the acidic environment of the stomach. Lipid digestion begins in the small intestine with the help of bile from the liver and pancreatic enzymes. Carbohydrate digestion also begins in the small intestine with the help of enzymes like amylase. Small proteins can be absorbed, but only after they have been further broken down into individual amino acids. Digestion is not complete after chyme moves out of the stomach, as further breakdown and absorption of nutrients occur in the small and large intestines.