Environmental Impacts on Enzyme Function

AP Biology· difficulty 2/5

Substrate is in excess; enzyme concentration is varied.

Why is rate proportional to enzyme concentration?

A
$More enzyme inhibits its own product$
B
$More enzyme = more active sites simultaneously catalyzing reactions$
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C
$Increased enzyme concentration increases substrate diffusion$
D
$Higher enzyme concentration changes ΔG$

Explanation

With substrate in excess, every additional enzyme molecule provides another active site, scaling rate linearly until other factors limit.

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