O Level Courses

Chapter 15: IGCSE O Level Biology Exam Tests

IGCSE O Level Biology MCQs - Chapter 15

Respiration in Biology Multiple Choice Questions (MCQ) PDF - 10

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Respiration in Biology Questions and Answers PDF Download: MCQ Quiz 10

MCQ 46:

Scientifically, breathing is a/an

  1. chemical process
  2. biochemical process
  3. thermal process
  4. redox process
MCQ 47:

During anabolic (building up) process the

  1. plant stops respiration
  2. oxygen is used up and carbon dioxide is produced
  3. building up of carbohydrates occur
  4. breakdown of carbohydrates occur
MCQ 48:

During oxygen debt, the lactic acid is transferred from muscles to

  1. liver
  2. muscles
  3. lungs
  4. mucus
MCQ 49:

Smallest bronchial tubes are called

  1. alveoli
  2. cilia
  3. bronchioles
  4. pleuron
MCQ 50:

Hydrogen carbonate ions (HCO3-) are carried to

  1. blood plasma
  2. lungs
  3. liver cells
  4. blood capillaries

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Respiration in Biology App (Android & iOS)

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O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

College Biology App (Android & iOS)

College Biology App (Android & iOS)

MCAT Biology App (Android & iOS)

MCAT Biology App (iOS & Android)