Question

The renal tubules secrete h+ into the tubular fluid, where most of it binds to bicarbonate, ammonia, and phosphate buffers.

a. True
b. False

Answer 1

The answer is True. Excretion of H+ ions from the body through urine is part of the body’s feedback mechanisms to maintain homeostatic pH of the body. This is achieved in the renal tubules of the kidneys. H+ and HCO3- ions are the main ions responsible for maintaining pH balance in the body.