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Practice problem

Rate of Reaction (Enzymes) — Role & Importance

By Hannah Bonville
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The graph below shows changes in the rate of reaction as substrate concentration is increased. The flat portion of the curve, labeled plateau, indicates a period of no change in reaction rate despite increases in substrate.

Rate of reaction vs substrate concentration. The plot increases to a maximum, then plateaus.

Which of the choices below best explains why the rate of reaction eventually stops increasing even when more substrate is added?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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