Proximal renal tubule is most permeable to _______________?
Correct answer: A. Sodium
- A. Sodium
- B. Potassium
- C. Bicarbonate
- D. Ammonia
Explanation
The proximal tubule has high permeability to sodium and reabsorbs most of the filtered sodium load, mainly through active transport and sodium-linked cotransport. Bicarbonate is also extensively reabsorbed, but sodium is the principal bulk solute handled here.
Last updated
Practise Renal Physiology
39 free Renal Physiology MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physiology questions like this
Physiology is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A decrease in the urine output is called_____________?
Ammonia in the kidney tubules is excreted in exchange for______________?
Amount of glucose absorbed in proximal convoluted tubule_______________?
Brush border is seen in________________?
Carbonic anhydrase in the kidney tubular cells is known to be associated with_____________?