BIOCHEMISTRY
ENZYMES AND METABOLISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these is NOT true?
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Enzymes can denature (change shape) when the temperature gets too high.
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Enzymes can only be used once in a chemical reaction.
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Extreme pH can denature enzymes.
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Enzymes speed up chemical reactions.
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Explanation:
Detailed explanation-1: -Enzymes are not reactants and are not used up during the reaction. Once an enzyme binds to a substrate and catalyzes the reaction, the enzyme is released, unchanged, and can be used for another reaction.
Detailed explanation-2: -So, the correct answer is ‘Enzymes are used up in reactions’.
Detailed explanation-3: -Enzymes let chemical reactions in the body happen millions of times faster than without the enzyme. Because enzymes are not part of the product, they can be reused again and again.
Detailed explanation-4: -Which of the following is FALSE concerning enzymes? Explanation: Enzymes will increase the rate of a chemical reaction, but will not alter the equilibrium of a reaction.
There is 1 question to complete.