Trypsin and pepsin are both enzymes in the digestive system which catalyze the breakdown of proteins in food into smaller peptide chains or into individual amino acids. However, like other enzymes, they differ in their substrate and optimal conditions. Analyze the
graph and select ALL of the statements that accurately describe the action of trypsin and pepsin.

A)
Trypsin has an optimal pH of 8.
B)
Pepsin works best at a pH of 3.
Both enzymes have an optimal pH of 7
D)
Pepsin works best in more acidic conditions.
E)
Trypsin works best in more acidic conditions,