Question

1. which enzyme works best in neutral conditions (ph 7)? 2. which enzyme is not affected by ph? 3. which enzyme works best at a ph of 2?

Explanation:

1. Many enzymes have an optimal pH. Amylase, for example, works well in neutral conditions around pH 7 in the small - intestine.
2. No enzyme is completely unaffected by pH as pH affects the ionization of amino acid side - chains in the enzyme's active site and overall protein structure. But some enzymes have a relatively wide pH - tolerance range.
3. Pepsin is an enzyme that works best in the highly acidic environment of the stomach, around pH 2.

Answer:

1. Amylase
2. There is no such enzyme
3. Pepsin