Describe the relationship between substrate concentration and the initial reaction rate of an enzyme-catalyzed

Question

What happens to the initial reaction rate as substrate concentration increases?

Answer 1

Initial rate increases linearly as the substrate concentration increases as the active of site the enzyme becomes more likely to collide with the substrate molecule forming an E-S complex. As the substrate increases a point will be reached where adding more substrate has no effect on enzyme activity - this is when excess substrate is present and the amount of enzyme is not limiting.

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