When the enzyme concentration remains fixed and the substrate amount is increased, why does the reaction rate eventually stop rising despite further substrate addition?

If the concentration of enzyme is kept constant and amount of substrate is increased a point is reached where increase in substrates concentration does not affect the reaction rate because of____________________? - SolveExam

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Subject: Biology Mcqsbiology-mcqs
Published: 11 May 2018
Last updated: 28 May 2026

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Enzymes become denatured due to excessive substrate levelsThe reaction speed decreases as substrate concentration risesEvery active site on the enzyme is fully occupiedNone of the above

Explanation

The reaction rate plateaus because all the enzyme's active sites are saturated with substrate molecules, preventing any further increase in reaction speed despite more substrate being available.

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When the enzyme concentration remains fixed and the substrate amount is increased, why does the reaction rate eventually stop rising despite further substrate addition?

Explanation

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