Enzyme Activity: Enzyme Concentration (OCR AS Biology): Revision Note
Exam code: H020
Enzyme Activity: Enzyme Concentration
Enzyme concentration affects the rate of reaction
The higher the enzyme concentration in a reaction mixture, the greater the number of active sites available and the greater the likelihood of enzyme-substrate complex formation
As long as there is sufficient substrate available, the initial rate of reaction increases linearly with enzyme concentration
If the amount of substrate is limited, at a certain point any further increase in enzyme concentration will not increase the reaction rate as the amount of substrate becomes a limiting factor

The effect of enzyme concentration on the rate of an enzyme-catalysed reaction
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