OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It increases the temperature of the reaction.
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It lowers the activation energy of the reaction.
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It changes the products created in the reaction.
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It causes the reaction to proceed in an unfavorable direction.
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Detailed explanation-1: -Which of the following best describes the action of an enzyme? Explanation: Enzymes are biological molecules that help catalyze reactions by lowering the energy of activation and increasing the rate of a reaction.
Detailed explanation-2: -Enzymes generally lower activation energy by reducing the energy needed for reactants to come together and react. For example: Enzymes bring reactants together so they don’t have to expend energy moving about until they collide at random.
Detailed explanation-3: -An enzyme is a biological catalyst. It speeds up a reaction by lowering or reducing the activation energy of the reaction.
Detailed explanation-4: -Enzymes perform the critical task of lowering a reaction’s activation energy-that is, the amount of energy that must be put in for the reaction to begin. Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily.
Detailed explanation-5: -Enzymes are catalysts, so they affect activation energy by decreasing the required amount of activation energy allowing chemical reactions to occur or speed up.