Question

quiz!
which of the following graphs best shows the relationship between the reaction rate of an enzyme - catalyzed reaction and substrate concentration?
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score: 100 %

Explanation:

Enzyme can bind with substrate to form enzyme - substrate complex. Initially, when substrate concentration was \(\text{low}\), the rate of reaction increased with increasing substrate concentration. This is because more substrate molecules can bind to the available enzyme active sites. As the substrate concentration continues to increase, the enzyme becomes saturated. At this point, all the enzyme active sites are occupied, and further increase in substrate concentration does not increase the rate of reaction. Graph \(B\) shows this trend. Graph \(A\) and \(C\) show a decrease in reaction rate at high substrate concentration, which is not correct for the relationship between substrate concentration and reaction rate (in the absence of enzyme inhibition). Graph \(D\) shows a linear increase, which does not account for enzyme saturation.

Answer:

B. Option Text