Which statement concerning HCO₃- excretion by the kidneys is INCORRECT?
A) During HCO3- reabsorption, HCO3- in the tubular fluid is actively cotransported by K+.
B) HCO3- is not excreted at pH = 7.4.
C) Secretion of H+ is accompanied by the addition of new HCO3- to the plasma.
D) HCO3- excretion increases during alkalosis.
Correct Answer:
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