Question

6. ADH enhances the reabsorption of:
a. Na+
b. K+
c. Water
d. Ca2+

7. Aldosterone enhances the
reabsorption of:

a. Na+
b. K+
c. Water
d. Ca2+

8. Which of the following statements
about specific gravity are false?
a. It is the density of a fluid.
b. It indicates solute
concentration.
c. It can be measured with a test
strip.
d. It can be altered by vitamins
and medicine.

9. Which of the following is not a
normal component of urine?
a. Glucose
b. Urea
c. Water
d. Ammonia

10. Which of the following is not a part
of the kidneys?
a. Renal medulla
b. Adrenal medulla
c. Renal cortex
d. Glomerulus

Answer 1

6. c) water

Explanation: ADH is the hormone secreted by the posterior pituitary gland. It acts on the collecting tubules and collecting ducts where it cause reabsorption of water by increasing the aquaporin channels.

7. a) Na+

Explanation: Aldosterone is the hormone secreted by the adrenal cortex. It acts on the distal convoluted tubules causing the reasbroption of Na+.

8) d. It can be altered by vitamins
and medicine.

9) a) Glucose

explanation: Glucose are completely reabsorbed from the filtrate. They are normally absent in the urine.

10) b) Adrenal medulla

Explanation: Adrenal medulla is the part of suprarenal/adrenal gland.