Question

1. which statement is true?

pepsin is denatured at a ph of 2.
all enzymes have some activity in acidic environments
the optimum environment for trypsin is basic
none of the enzymes appear to work well in a neutral environment.

Explanation:

Pepsin works best at pH 2. Not all enzymes work in acidic. Trypsin's optimal pH is basic (around 7 - 8). Some enzymes work in neutral.

Answer:

C. The optimum environment for trypsin is basic