Question

5. Lipids are chemically digested only by the enzyme lipase.

Group of answer choices

True

False

36. Lipid absorption into the epithelial cells of villi occurs via active transport.

Group of answer choices

True

False

37. Triglycerides are resynthesized inside the epithelial cells of the villus
before they enter the central lacteal of the villus.

Group of answer choices

True

False

38. Chylomicrons move from small intestine to the liver through the
hepatic portal system.

Group of answer choices

True

False

39. If a person loses blood, renin release from the kidney increases. This in turn increases the levels of angiotensin II. Which of the following effects would occur due to these increases in renin and angiotensin II?

There would be an increase in aldosterone secretion

Group of answer choices

True

False

40. If a person loses blood, renin release from the kidney increases. This in turn increases the levels of angiotensin II. Which of the following effects would occur due to these increases in renin and angiotensin II?

Sodium reabsorption in the kidney tubules would increase

Group of answer choices

True

False

41. If a person loses blood, renin release from the kidney increases. This in turn increases the levels of angiotensin II. Which of the following effects would occur due to these increases in renin and angiotensin II?

Peripheral vasodilation would occur.

Group of answer choices

True

False

42. If a person loses blood, renin release from the kidney increases. This in turn increases the levels of angiotensin II. Which of the following effects would occur due to these increases in renin and angiotensin II?

Water reabsorption decreases.

Group of answer choices

True

False

Answer 1

5. True

Explanation: Lipase is the only enzyme that digests the lipids chemically.

Lipids are broken down to small droplets by physical action of bile salts.

36) False

Explanation: Lipids are absorbed into the villi by the passive diffusion because lipids are lipophilic so they can diffuse through the cell membrane.

37) True

Explanation: triglycerides, fat-soluble vitamins, and cholesterol are coated with a layer of apolipoprotein forms the chylomicron within the epithelial cells of the villus.

38) False

Explanation:  chylomicrons are secreted through the basolateral membrane into the lacteals, where they join lymph to become chyle. The lymphatic vessels carry the chyle to the venous return of the systemic circulation.

39) true

Explanation: Aldosterone secretion is increased due to increase in angiotensin II

40) true

Explanation: Aldosterone secretion is increased due to increase in angiotensin II. Aldosterone causes increase absorption of sodium through the kidney.

41) False

explanation: Angiotensin II causes vasoconstriction

42) False

explanation: ADH secretion is increased which causes increase water reabsorption.