Class 11 · Biomolecules

Enzyme-Substrate Complex Formation — NEET Biology

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The formation of the ES complex is essential for catalysis.

NCERT Biology · Class 11 · Chapter 9 · Paragraph 41
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Which of the above statements are NOT correct? S1: Enzymes remain unchanged at the end of a reaction and can be reused to catalyze further reactions. S2: Enzymes significantly increase the rate of chemical reactions by altering the difference in potential energy between substrates and products. S3: The formation of a transient enzyme-substrate (ES) complex is an essential step for enzyme catalysis. S4: Enzymes achieve their catalytic power by elevating the energy level of the transition state, thereby accelerating product formation. S5: While enzymes greatly enhance reaction rates, they do not affect the equilibrium constant or the direction of a reversible reaction.

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