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IGCSE O Level Biology MCQs (O Level) From Textbook

IGCSE O Level Biology Exam MCQs – Practice Test 12 (Chapter 19)

What Are Enzymes Notes Questions with Answers PDF Download – Test 12

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What Are Enzymes Test Questions and Answers PDF Download: MCQ 12

MCQ 56: Amylase becomes denatured at a acidic pH of:

  1. 4
  2. 5
  3. 6
  4. 7

MCQ 57: The enzyme, Papain is found in:

  1. pawpaw
  2. proteases
  3. pepsin
  4. pancreatic amylase

MCQ 58: Conversion of hydrogen peroxide (H2O2) to water (H2O) and oxygen (O2) is carried out by:

  1. catalysis
  2. catalase
  3. bile
  4. fructose

MCQ 59: In plants, enzymes become denatured above:

  1. 40 °C
  2. 50 °C
  3. 60 °C
  4. 70 °C

MCQ 60: Food oxidation during cellular respiration is carried out through:

  1. Lipases
  2. Cellulose
  3. oxidation-reduction enzymes
  4. the production of hydrogen bioxide

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What Are Enzymes Notes App

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O Level Biology Notes App

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