In which part of the nephron are sodium and chloride ions actively reabsorbed?
a.
glomerulus

b. loop of henle

c. bowman's capsule

The correct answer is option C. loop of Henle.

Explanation:

The loop of Henle is the part of a nephron in the kidney, that starts from the proximal convoluted tubule or PCT to the distal convoluted tubule DCT. The major role of the loop of Henle is to build a concentration gradient in the kidney.

Sodium (Na+), chloride (Cl−) and potassium (K+) ions are reabsorbed by secondary active transport from the urine by a Na-K-Cl co-transporter. The electrical gradient and concentration gradient causes more reabsorption of calcium (Ca2+), magnesium (Mg2+) and Na+.

Thus, the correct answer is option C.

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