Question

the cells that form the macula densa belong to which portion of the nephron?
a.) proximal convoluted tubule
b.) distal convoluted tubule
c.) bowmans capsule
d.) loop of henle

Explanation:

Macula densa is a part of the juxtaglomerular apparatus. It is located in the initial part of the distal convoluted tubule. The cells of macula densa are sensitive to the concentration of sodium chloride in the filtrate. They play a role in regulating the glomerular filtration rate and renin - angiotensin - aldosterone system.

Answer:

B. Distal convoluted tubule