BIOLOGY
ENZYMES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Enzymes combine temporarily with substrate while Catalysts combine permanently
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Enzymes can be easily inactivated but not so in the case of catalysts
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Enzymes reduce activation energy while catalysts increase activation energy
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Both Enzymes and Catalysts catalyse biological reactions
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Detailed explanation-1: -Enzymes catalyze the reaction by lowering the activation energy which is required to initiate the reaction. Through this mechanism, the reaction can be catalyzed at a fast rate. Hence, it is the correct option.
Detailed explanation-2: -Difference between enzyme and catalyst Enzymes are proteins that increase rate of chemical reactions converting substrate into product. Catalysts are substances that increase or decrease the rate of a chemical reaction but remain unchanged.
Detailed explanation-3: -An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell. The enzyme is not destroyed during the reaction and is used over and over.
Detailed explanation-4: -Enzymes (and other catalysts) act by reducing the activation energy, thereby increasing the rate of reaction. The increased rate is the same in both the forward and reverse directions, since both must pass through the same transition state.