A and B in the given graph are the action spectra of the two enzymes. The two enzymes are

Options

A. A: amylase B: trypsin
B. A: pepsin B: trypsin
C. A: chymotrypsin B: rennin
D. A: lectate dehydrogenase B: amylase.

Answer

B

Explanation

Pepsin and trypsin both are protein digesting enzymes, but they work at different locations and different pH in alimentary canal. Pepsin, which is most active at pH of 1.5 to 2.5, is an important peptic enzyme in stomach. Truypsin. Which is a pancreatic protease, acts mostly in upper small intestine (duodenum and jejenum). works at an optimum pH of 7.5-8.5.