The pigment which stores oxygen in muscles is:
Correct answer: B. Myoglobin
- A. Hemoglobin
- B. Myoglobin
- C. Myosin
- D. Actinomyosin
Explanation
Myoglobin is a protein present in muscles, which has one oxygen-binding site, and its function is to supply muscles constantly with 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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