Chemical digestion of carbohydrates begins in the........... whereas chemical digestion of proteins begins in the...........

Correct Answer: D

Rationale: Carbohydrate digestion starts in the oral cavity with salivary amylase, while protein digestion begins in the stomach with pepsin.

Correct Answer: D

Rationale: Brunner's glands secrete an alkaline mucus to neutralize acidic chyme from the stomach.

Correct Answer: B

Rationale: Pancreatic juice (exocrine) is secreted by acinar cells, while hormones (endocrine) are secreted by Islets of Langerhans.

Correct Answer: C

Rationale: Lysozyme targets and breaks down bacterial cell walls.

Correct Answer: A

Rationale: Amino acids are absorbed into the blood capillaries of the villi in the small intestine.