Question

Which of these acids occurs naturally in the body and performs important regulatory functions?

A. carbonic acid
B. Zacetic acid
C. magnesium hydroxide
D. sodium hydroxide

Answer 1

*acetic

Answer 2

carbonic acid, it's conjugate base (bicarbonate) is an important pH buffer in blood.

Answer 3

magnesium is another one

Answer 4

magnesium hydroxide is not naturally occurring in the body nor does it perform any regulatory functions. Magnesium ions, \(Mg^{2+}\), do actually serve as cofactors many enzymes, but thats irrelevant to the question.

Answer 5

so your saying since the body requires magnesium that it can only recieve it through supplements like food and vitamins ??? im not being sarcastic im actually asking a question.

Answer 6

yeah, though the word "vitamin" is colloquially interchangeable with "cofactor", so \(\sf \underline{loosely}\) speaking \(Mg^{2+}\) ions ARE vitamins as they perform a similar role. You do need to acquire them through your diet but they're ubiquitous in nature, so getting a sufficient amount is easy.

Answer 7

thanks thats something i didnt know ....

Answer 8

no probs, dude

Answer 9

:)