NURSING EXAM QUESTIONS
BIOCHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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reusable
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catalyst
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specific
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fragile
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Detailed explanation-1: -Once a new product leaves an enzyme, the enzyme is unchanged and ready for the next substrate. What is this called? reusable. What is a substance called if it speeds up a chemical reaction? catalyst.
Detailed explanation-2: -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-3: -Enzymes are reusable. 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-4: -The enzyme will always return to its original state at the completion of the reaction. One of the important properties of enzymes is that they remain ultimately unchanged by the reactions they catalyze.