Question

salts ________ .
a are found in the filtrate and is reabsorbed, but still occurs in the urine
b never leave the blood plasma
c are filtered and reabsorbed totally
d are filtered, but not reabsorbed

Explanation:

To solve this, we analyze each option:

• Option B: Salts do leave blood plasma (e.g., during filtration in kidneys), so B is wrong.
• Option C: Salts aren't reabsorbed totally (some remain in urine for homeostasis), so C is wrong.
• Option D: Salts are reabsorbed (not just filtered and excreted), so D is wrong.
• Option A: Salts are in filtrate, reabsorbed (but not all), so some remain in urine. This matches kidney physiology.

Answer:

A. are found in the filtrate and is reabsorbed, but still occurs in the urine