Reduction in pH of blood will:
Correct answer: A. Decrease the affinity of haemoglobin with oxygen
- A. Decrease the affinity of haemoglobin with oxygen
- B. Release bicarbonate ions by the liver
- C. Reduce the rate of heart beat
- D. Reduce the blood supply to the brain
Explanation
Reduction in pH of blood causes oxygen haemoglobin dissociation curve to shift to right which indicates dissociation of oxygen from haemoglobin. This decreases affinity of haemoglobin for oxygen.
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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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