Biology for IGCSE & O level - Enzymes (Section 3 - No. 37)
How might substrate concentration affect an enzyme-catalyzed reaction?
Increasing substrate concentration always increases reaction rate, linearly.
Increasing substrate concentration has no effect on reaction rate.
Increasing substrate concentration initially increases the reaction rate but will eventually plateau.
Increasing substrate concentration initially decreases reaction rate, but then increases.
Explanation
Increasing substrate concentration increases reaction rate until saturation point.
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