OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is TRUE about enzymes? I. Enzymes typically catalyze reactions at much higher rates than chemical catalyst.II. Enzymes are often very specific for their substrates.III. Enzyme activities can often be regulated.IV. Enzymes typically act under milder conditions of temperature and pH than chemical catalysts.
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I, II, III
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I, II, III, IV
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II, II
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III, IV
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II, III, IV
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Explanation:
Detailed explanation-1: -The correct answer is option B. I. Enzymes are the biological catalyst that catalyzes the reaction at a faster rate than the chemical catalyst.
Detailed explanation-2: -Which statement is TRUE of enzyme catalysts? They can increase the reaction rate for a given reaction by a thousand-fold or more.
Detailed explanation-3: -Enzymes act as catalysts; they do not get consumed in the chemical reactions that they accelerate.
Detailed explanation-4: -Which of the following is true of enzymes and substrates? You correctly answered: c. Enzymes are specific about the substrates they can act upon.
There is 1 question to complete.