BIOLOGY
ENZYMES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They catalyze one specific type of reaction
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They are unaffected by changes in temperature
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They are unaffected by changes in pH
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Their overall shape can change without affecting their function
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Detailed explanation-1: -Enzymes works or catalyse a biochemical reaction by lowering the activation energy barrier of the reaction. It is important to understand that enzymes do not change the chemical equilibrium of the reaction and is not consumed during the process.
Detailed explanation-2: -The correct answer is option B. I. Enzymes are the biological catalyst that catalyzes the reaction at a faster rate than the chemical catalyst. This is because enzymes are more specific in nature and there is a lack of formation of side products during the reaction catalysis.
Detailed explanation-3: -In addition, enzymes are highly specific in their action; that is, each enzyme catalyzes only one type of reaction in only one compound or a group of structurally related compounds.
Detailed explanation-4: -Answer and Explanation: The correct option is c. The rate of the reaction is greater than when the same reaction occurs in the absence of an enzyme.
Detailed explanation-5: -Enzymes (and other catalysts) act by reducing the activation energy, thereby increasing the rate of reaction. The increased rate is the same in both the forward and reverse directions, since both must pass through the same transition state.