JEE Main 2023 — Chemistry in Everyday Life Question with Solution
JEE Main 2023 (25 Jan Shift 1)
Question
The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph
(a)
(b)
(c)
(d)
Choose an option
Show full solutionCorrect option: B
Step-by-step explanation
The substrate concentration influences enzyme activity. As the substrate concentration increases the rate of reaction also increases. This is because the more substrate molecules will interact with enzyme molecules, the more products will be formed.
However, after a certain concentration, further increase in substrate concentration will have no effect on the rate of reaction, since the substrate concentration will no longer be the limiting factor. At this stage, enzyme molecules become saturated and work at their maximum possible rate.
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This is a previous-year question from JEE Main 2023, covering the Chemistry in Everyday Life chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.