BIOCHEMISTRY
ENZYMES AND METABOLISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statements regarding enzymes is not true?
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enzymes are proteins
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enzymes are not affected by heat
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enzymes change the rate of reaction
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enzymes remain unchanged at the end of a catalytic process
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Explanation:
Detailed explanation-1: -So, the correct answer is ‘Enzymes are used up in reactions’.
Detailed explanation-2: -Because enzymes are proteins, they are denatured by heat. Therefore, at higher temperatures (over about 55°C in the graph below) there is a rapid loss of activity as the protein suffers irreversible denaturation.
Detailed explanation-3: -Answer is (1) Enzymes are non-specific for a reaction and substrate.
Detailed explanation-4: -The correct answer: The factor which does NOT affect enzyme activity is d. Free Energy.
There is 1 question to complete.