Apentix/AP Biology/Unit 1: Chemistry of Life/Question

AP Biologyeasymcq1 pt

An enzyme's function is destroyed by extreme pH. The most direct explanation is that

A.pH disrupts the bonds that hold the enzyme's shape

B.pH adds new amino acids to the chain

C.pH removes the substrate from solution

D.pH speeds up every enzyme uniformly

Explanation

Core Concept

Protons and hydroxide ions break the ionic and hydrogen bonds of the fold, denaturing the active site so substrate no longer fits. Shape lost, function lost.

Correct Answer

ApH disrupts the bonds that hold the enzyme's shape

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