IGCSE O Level Biology Learning App | Circulatory system Quiz e-Book PDF

IGCSE O Level Biology MCQs (O Level) From Textbook

IGCSE O Level Biology Entrance Exam MCQs – Mock Test 349

Circulatory system Quiz with Answers PDF Download – Test 349

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Circulatory system Quiz – Mock Test 349 PDF Download

MCQ 1741: Semilunar valves are found in:

  1. aorta
  2. arteries
  3. veins
  4. pulmonary artery

MCQ 1742: Nucleoplasm is found inside:

  1. hemoglobin
  2. nucleus
  3. cell membrane
  4. nucleoli

MCQ 1743: Due to chemical energy, water and carbon dioxide are converted into:

  1. cellulose
  2. carbohydrates
  3. photolysis of water
  4. starch

MCQ 1744: Atria and the ventricles work:

  1. simultaneously
  2. alternately
  3. unproportionally
  4. proportionally

MCQ 1745: Convection may reduce body temperature through:

  1. excessive sweating
  2. sitting in front of a fan
  3. bathing
  4. expiration

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