Question

A student measured the time required for a protein sample to be completely digested in the presence of an enzyme under different pH levels. At which pH is the enzyme MOST active? (BESURE TO ANALYZE THE GRAPH!)

A. pH 4
B. pH 6
C. pH 8
D. pH 10

Answer 1

A student measured the time required for a protein sample to be completely digested in the presence of an enzyme under different pH levels. The enzyme is most active at A. pH 4

Step-by-step explanation:

It can be observed that the enzyme activity is highest at pH 2 and gradually decreases as the pH increases.

At pH 4, the enzyme is still relatively active, but its activity decreases further at pH 6, pH 8, and pH 10.

Enzymes have an optimum pH at which they exhibit maximum activity. The optimum pH for enzymes can vary depending on their natural environment and function. In the case of pepsin, an enzyme that breaks down proteins in the stomach, the optimum pH is 2.

Therefore, at pH 4, which is closer to pH 2, the enzyme is still quite active.

Based on this analysis, the correct answer is A: pH 4, as the enzyme is most active at this pH level.