Question

In the human stomach, chemical reactions take place in an acidic environment. Some of these reactions are catalyzed by enzymes. How would these enzymes most likely function in an environment where the pH was doubled?
(A)The enzymes would interfere with chemical reactions by bonding with the reactants.
(B)The enzymes would not be able to function properly outside of their optimal pH range.
(C)The rate of the reactions that are catalyzed by the enzymes would double.
(D)The rate of the reactions would increase as the PH is increased.

Answer 1

Enzymes don't work out of their pH range, so the answer would be B.

Answer 2

thanks

Answer 3

stomach pH varies from 1~5

Answer 4

Enzymes are affected by increase of pH in human stomach because the stomach only requires the pH values between 1-2 and 3-5.