What pH is required in order for protein to be digested into peptides with the use of pepsin?
A)3.0
B)7.0
C)7.6
D)9.3
E)Pepsin will not digest proteins into peptides.

Question

Quizplus · Accepted Answer

Pepsin is an enzyme that functions best in acidic conditions, with a pH of around 2.0-3.5. At this pH, pepsin can break down proteins into smaller peptides. Therefore, a pH of 3.0 is required in order for protein to be digested into peptides with the use of pepsin. Choice B (7.0) is incorrect because this pH is neutral, and pepsin requires an acidic environment to function. Choice C (7.6) and choice D (9.3) are even less acidic than choice B and would not provide an appropriate environment for pepsin to function. Lastly, choice E is incorrect because pepsin is specifically designed to digest proteins into peptides, so it is able to accomplish this task.

What PH Is Required in Order for Protein to Be