Question

The pH of blood does not appreciably change by a small addition of acid or base because

Options

• Can be easily coagulated

• Contains serum protein which act as buffer

• Contains iron as a part of the molecule

• blood is body fluid

Answer 1

Contains serum protein which act as buffer

Explanation:

The buffer system present in serum is \[\ce{(CO^{2-}3 + HCO^{-}3)}\] which resists the change in pH of blood by small addition of acid or base.