Physiology True about the H+ secretion by the PCT is: A It is for acidification of urine B It occurs against the concentration gradient for H+ C It is meant for reabsorption of the filtered bicarbonate D It is an example of diffusion trapping 💡 Explanation True about the H+ secretion by the PCT is: ✓ Correct Answer: C. It is meant for reabsorption of the filtered bicarbonate