Question

at what ph will enzymes in human blood function best?
multiple choice
6.4
7.4
8.4
7.0

Explanation:

Enzymes in human blood function best at a pH close to the normal pH of human blood. The normal pH of human blood is around 7.35 - 7.45. Among the given options, 7.4 is within this range.

Answer:

7.4