Question

question 42
tubular secretion mostly occurs in which portion of the nephron?
a distal convoluted tubule
b proximal convoluted tubule
c collecting duct
d bowmans capsule

Explanation:

Tubular secretion is a process in the nephron. The proximal convoluted tubule mainly reabsorbs substances like glucose, amino acids, and water. The Bowman's capsule is where filtration occurs. The collecting duct is mainly involved in water reabsorption and concentration of urine. The distal convoluted tubule is the main site for tubular secretion, where substances like \(H^{+}\), \(K^{+}\), and certain drugs are secreted into the filtrate.

Answer:

A. Distal convoluted tubule