Biology for IGCSE & O level - Enzymes (Section 4 - No. 10)

How does pH affect enzyme activity?
pH has no effect on enzyme activity.
Each enzyme has a specific pH range in which it functions best.
Enzymes function best at very high pH levels.
Enzymes function best at very low pH levels.

Explanation

pH affects the shape and function of an enzyme, and each enzyme has an optimal pH range.

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