The graph illustrates the activity level of three common digestive enzymes, across a range of pH values. Which enzyme is likely to be active in the acidic environment of the stomach?
A) pepsin
B) trypsin
C) amylase
D) pepsin and trypsin

Explanation: Pepsin is an enzyme which helps in the digestion of proteins. It breaks down the proteins into smaller peptides. This enzyme is present in the stomach.

Optimum pH range of pepsin for the activity in stomach is 1.5-1.6

All the other enzymes are not present in the stomach. Trypsin is present in pancreas and amylase is present in salivary glands and pancreas.

As seen from the graph, the activity of pepsin decreases as we increase the pH of the solution. Hence, it can be concluded that pepsin is active in acidic environment.

The graph illustrates the activity level of three common digestive enzymes, across a range of pH values. Which enzyme is likely to be active in the acidic environment of the stomach? A) pepsin B) trypsin C) amylase D) pepsin and trypsin

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The graph illustrates the activity level of three common digestive enzymes, across a range of pH values. Which enzyme is likely to be active in the acidic environment of the stomach?
A) pepsin
B) trypsin
C) amylase
D) pepsin and trypsin