Question

in which part of the nephron is most of the na+, k+, and h₂o reabsorbed?
a.) pct
b.) loop of henle
c.) collecting ducts
d.) dct

Explanation:

The proximal convoluted tubule (PCT) is responsible for reabsorbing the majority of \(Na^{+}\), \(K^{+}\), and \(H_{2}O\) in the nephron. This is due to its large surface area (from microvilli) and high metabolic activity (many mitochondria for active transport).

Answer:

A. PCT