Question

Pepsin, a common enzyme found in the stomach, is most active at pH values between 0.5 and 2.5. It works slowly between pH values of 2.6 and 3.4. Beyond a pH of about 3.5, it becomes completely inactive. Why does this happen?

Answer 1

Ph value between 0.5 and 2.5 is the optimum temperature of the pepsin which means its the most active. When temperature increase above the optimum temperature it will cause a rapid decrease in the rate of reaction. High temperature breaks the bond that keeps the enzyme (pepsin) in shape. The enzyme will denature and become inactive.

Answer 2

B) The proteins chain in the enzyme is denatured, permanently inactivating it as the pH approaches