Tubular secretion A) refers to the movement of a substance from the peritubular capillary blood into the tubular lumen. B) can occur by active or passive transport mechanisms. C) of K⁺ occurs in the distal and collecting tubules and is stimulated by aldosterone. D) of organic anions and cations occurs in the proximal tubule by two distinct types of carriers. E) all of these answers.

Question

Quizplus · Accepted Answer

All of the options are true. Tubular secretion can occur by both active and passive transport mechanisms, and substances like K⁺ can be secreted in the distal and collecting tubules, stimulated by aldosterone. Organic anions and cations, on the other hand, are secreted in the proximal tubule through two different types of carriers. Additionally, tubular secretion refers to the movement of substances from the peritubular capillary blood into the tubular lumen.

Tubular Secretion