O Level Courses

Chapter 19: IGCSE O Level Biology Exam Tests

IGCSE O Level Biology MCQs - Chapter 19

What Are Enzymes Trivia Questions & Answers PDF Download - 12

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What Are Enzymes Exam Questions and Answers PDF Download: Test 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 App (Android & iOS)

What Are Enzymes App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

Phylum App (Android & iOS)

Phylum App (Android & iOS)

Cell Biology App (Android & iOS)

Cell Biology App (iOS & Android)