Which of the following is not one of the three basic steps involved in enzyme ac

Question

Which of the following is not one of the three basic steps involved in enzyme activity? The enzyme's active site binds to the substrate(s) on which it acts, temporarily forming an enzyme-substrate complex. The enzyme-substrate complex undergoes internal rearrangements that form the product(s). The enzyme releases the product(s) of the reaction Because their catalytic role renders most enzymes ineffective after their initial activity, a cell must product large amounts of each enzyme in order to perform effectively

Explanation / Answer

First 3 options are the basic steps of enzyme activity.

The active site of the enzyme binds to the specific substrate. This leads to the formation of an enzyme substrate complex which has a lower activation energy. Due to enzyme substrate interaction, some changes on chemical bonds of the substrate occur. These internal rearrangements result in the formation of products. Then the enzyme surface would release the product and make itself ready for the next reaction cycle.

The effectiveness of the enzyme is not decreased with time. The factors which affect the rate include pH, temperature, substrate concentration, and the presence of any inhibitors or activators.

So the 4th option is a wrong statement.

Answer. 4

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