Which of the following acid/base pairs act as natural buffers in livin – McqOptions

MCQOPTIONS

1.	Which of the following acid/base pairs act as natural buffers in living systems?
A.	H₂CO₃/HCO₃¯
B.	H₂PO₄-/HPO₄²¯
C.	Histidine+/histidine
D.	All of these
Answer» E.

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