The cells of the distal convoluted tubule

A. False About 80 per cent of the filtered water is reabsorbed before it reaches the distal tubules.

B. True The rate is related to acid–base requirements.

C. True By conversion of glutamine to glutamate; NH3 is a buffer for the H+ being excreted.

D. True H secretion is related to the body’s acid–base balance.

E. False Further modification takes place in the collecting ducts.