Kidneys help in the maintenance of acid-base balance because
The renal tubules reabsorb nearly 99% of the filtrate
Tubular cells secrete H+into the filtrate
DCT is capable of selective secretion of K+ into the filtrate
Kidneys have built-in mechanisms for the regulation of glomerular filtration rate
Kidneys help in the maintenance of acid-base balance because tubular cells secrete H+ into the filtrate.