Haemoglobin carries more oxygen than plasma by:
Correct answer: C. 70 times
- A. 50 times
- B. 20 times
- C. 70 times
- D. 100 times
- E. 200 times
Explanation
Oxygen is carried in the blood in two forms:(1)Plasma and (2) Hemoglobin. Hemoglobin carries 70 times more oxygen than plasma.
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About Respiration
The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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