So I have a few questions about it: What is AP humanities? (The teacher has a bunch of art around his room so I'm assuming it has to do with art) What do you do in AP humanities? Is... show more We just got our class choices for next year and as I was looking over the AP choices, I noticed that AP humanities was on it.
Angiotensin-converting enzyme. Angiotensin-converting enzyme (EC 3.4.15.1), or ACE, is a central component of the renin-angiotensin system (RAS), which controls blood pressure by regulating the volume of fluids in the body. It converts the hormone angiotensin I to the active vasoconstrictor angiotensin II.
1 To completely reabsorb bicarbonate,the kidney must secrete 4320 meq/day of hydrogen ions in addition to the amount required to exrete the daily acid load. 2  The primary step in proximal hydrogen secretion is the secretion of H+ by the Na+ - H+ antiporter in the luminal membrane.