OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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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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Detailed explanation-1: -Enzymes are reusable. Once an enzyme binds to a substrate and catalyzes the reaction, the enzyme is released, unchanged, and can be used for another reaction. This means that for each reaction, there does not need to be a 1:1 ratio between enzyme and substrate molecules.
Detailed explanation-2: -Answer and Explanation: Of the following regarding enzymes, enzymes being consumed by the reaction they catalyze is incorrect. Enzymes are special in that they’re able to catalyze many different reactions without being consumed or used up by the specific reaction.
Detailed explanation-3: -So, the correct answer is ‘Enzymes are used up in reactions’.
Detailed explanation-4: -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.