4.8.5b Enzymes
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SPM Form 4 Biology Chapter 4
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Question 1 of 5
1. Question
1 pointsThe diagram shows a graph of the rate of reaction of enzymes F, G and H at different pH value.
What are enzymes F, G and H based on their optimum pH value respectively?
Correct
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Incorrect
The correct answer is “A”.
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Question 2 of 5
2. Question
1 pointsThe diagram shows the optimum pH for activity of three different enzymes.
Enzymes P, Q and R can function actively in which parts of the digestive system?
Correct
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Incorrect
The correct answer is “C”.
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Question 3 of 5
3. Question
1 pointsWhich of the following statements is true about enzyme?
I. The action of an enzyme is specific
II. Enzyme reaction is reversible
III. Enzyme is most active as the temperature increases to 60 oC
IV. Enzyme is sensitive to pHCorrect
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Incorrect
The correct answer is “I, II and IV only”.
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Question 4 of 5
4. Question
1 pointsWhich of the following statements is not true about enzymes?
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Incorrect
The correct answer is “It is most active as the temperature increases to 60 oC”.
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Question 5 of 5
5. Question
1 pointsWhich of the following are the factors affecting enzyme activity?
I. pH level
II. Temperature
III. Concentration of substrate
IV. Concentration of enzymeCorrect
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Incorrect
The correct answer is “I, II, III and IV”.