Essential Biochemistry - Acid Base Balance (Section 1 - No. 3)
Which of the following is/are key element(s) of the phosphate buffer system?
H2PO4-
HPO42-
Na+
Cl-
הֶסבֵּר
The phosphate buffer system utilizes H2PO4- (dihydrogen phosphate) and HPO42- (hydrogen phosphate) to buffer pH changes.