Micelle formation is necessary for the intestinal absorption of

Correct Answer: C

Rationale: Micelles, formed by bile salts, facilitate the absorption of fat-soluble vitamins like vitamin D in the small intestine.

Correct Answer: A

Rationale: A malfunctioning lower esophageal sphincter allows acid reflux, causing heartburn. Constipation, heart attacks, and diarrhea are unrelated to this sphincter.

Correct Answer: C

Rationale: A large surface area, due to villi and microvilli, enhances nutrient absorption efficiency.

Correct Answer: B

Rationale: Peptide hormones bind to membrane receptors, triggering secondary messengers inside the cell.

Correct Answer: B

Rationale: Glomerular capillaries are in Bowman's capsule, where filtration occurs.