IGCSE O Level Biology MCQs - Chapter 19

What Are Enzymes Multiple Choice Questions (MCQ) PDF - 10

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What Are Enzymes Questions & Answers PDF Download: MCQ Quiz 10

MCQ 46: PH value of below 7 indicates pure

water
enzyme
alkaline
acidic

MCQ 47: Enzyme activity can also be charted through the

rate of digestion
rate of reaction
level of pH
number of active sites

MCQ 48: Catalase enzyme is common in

plants only
animals only
insects
plant and animals

MCQ 49: Most of the co-enzymes are

protein based
water based
easily denatured
non-protein based

MCQ 50: For most enzymes the optimum temperature is

30-40 °C
40-50 °C
40-45 °C
45-50 °C

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