Which of the following mechanisms results in acid being excreted from the body? A. breathing out H2PO4 - (dihydrogen-phosphate) from the lungs B. excreting HCO3 - in the urine C. excreting NH3 (ammonia) in the urine D. breathing out CO2 from the lungs
Option D. As CO2 exhaled from the lungs, carbonic acid withinside the blood con- verts into carbon dioxide and water. So as carbon dioxide is exhaled, the amount of carbonic acid in the body decreases.
