In what form is most oxygen transported in human blood?
Correct answer D. As oxyhaemoglobin in red blood cells
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Respiration and Gaseous Exchange MCQs
Page 3 of Respiration and Gaseous Exchange multiple-choice questions with answers. Tap an option to check yourself.
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- Biological Molecules 74
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- Bioenergetics 55
- Circulation 50
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- Digestion 45
- Immunity 45
- Support and Movement 45
- Acellular Life (Viruses) 45
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- Respiration and Gaseous Exchange 45
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- Enzymes 45
- Cell Cycle 41
- Chromosome and DNA 40
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- Ecosystem 27
What is the maximum number of oxygen molecules that one haemoglobin molecule can carry?
Correct answer D. 4
Which part of the human respiratory tract is supported by C-shaped rings of cartilage?
Correct answer D. Trachea
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What is the function of the epiglottis?
Correct answer A. To cover the entrance of the larynx during swallowing
Why are the cartilage rings of the trachea incomplete at the back?
Correct answer B. To allow the oesophagus behind it to expand when food is swallowed