Question

human blood has a ph of 7.4. how do buffers in the blood affect the ph? a. buffers are acids that cause the ph of blood to decrease. b. buffers are bases that cause the ph of blood to increase. c. buffers prevent small amounts of acid or base from changing the ph of blood.

Explanation:

Buffers are solutions that resist changes in pH upon the addition of small amounts of acid or base. In blood, they maintain a stable pH around 7.4 by neutralizing any added acid or base.

Answer:

C. Buffers prevent small amounts of acid or base from changing the pH of blood.