BIOLOGY
ENZYMES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these definitions does NOT fit the definition of an enzyme?
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An enzyme is a protein that acts as a catalyst
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An enzyme is a substance that acts as a lock with the substrate as a key
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An enzyme is a substance that lowers the activation energy of reacting molecules and creates an alternate pathway for the reaction
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An enzyme is a substance that is induced to fit the shape of the substrate molecules
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Explanation:
Detailed explanation-1: -Answer: Enzyme activity is regulated. Enzyme activity is not regulated and thus it is not characteristic of an enzyme.
Detailed explanation-2: -Listen to pronunciation. (EN-zime) A protein that speeds up chemical reactions in the body.
Detailed explanation-3: -A Lock and Key analogy may be used to describe the fundamental action of a single substrate enzyme. In this case, the enzyme is the lock, and the substrate is the key. Only the correct size key, which is the substrate, enters the keyhole, which is the active site of the lock, which is the enzyme.
Detailed explanation-4: -So, the correct answer is ‘Enzymes are used up in reactions’.
There is 1 question to complete.