Question

How much enzymes must be added to a test tube of pH 7 if 2cm² of enzyme was put into a test tube of pH 2?

a) More enzymes are required
b) Same amount of enzymes
c) Less enzymes are required
d) Enzymes are not affected by pH

Answer 1

Enzymes have an optimum pH at which they function best. For most enzymes, this optimum pH is around 7.4. When the pH deviates from the optimum value, the activity of the enzyme decreases. In this case, more enzymes are required to compensate for the reduced activity at a lower pH.

Step-by-step explanation:

Enzymes have an optimum pH at which they function best. For most enzymes, this optimum pH is around 7.4, which is the biological pH. When the pH deviates from the optimum value, the activity of the enzyme decreases. In this case, the enzyme is being put in a test tube with a pH of 2, which is much lower than its optimum pH of 7. Therefore, more enzymes are required to compensate for the reduced activity at a lower pH.