Which of the following functions is associated with angiotensin?

A. Intrinsic factor is a glycoprotein produced by the stomach that binds to vitamin B12 and facilitates its absorption in the small intestine, particularly in the ileum. This is the correct answer.

B. Bile salts are involved in the digestion and absorption of fats, not vitamin B12.

C. Pepsin is an enzyme in the stomach that aids in the digestion of proteins but is not involved in vitamin B12 absorption.

D. Amylase is an enzyme that helps break down carbohydrates, not involved in the absorption of vitamin B12.

A. Angiotensin does not inhibit thirst; in fact, it stimulates thirst as part of its role in increasing blood pressure and fluid retention.

B. Angiotensin, specifically angiotensin II, stimulates vasoconstriction, which increases blood pressure by narrowing blood vessels. This is one of its primary actions in regulating blood volume and pressure.

C. Angiotensin actually promotes the retention of salt and water in the kidneys to increase blood volume and pressure, rather than stimulating their elimination.

D. Angiotensin does not inhibit antidiuretic hormone (ADH) release; it actually stimulates the release of ADH, which promotes water retention by the kidneys to increase blood volume.