Question

H. Answer these questions.
1. Under what conditions does anaerobic respiration occur?
2. State the role of diaphragm and rib muscles in breathing.
3. Explain the mechanism of breathing in humans.
4. Describe the process of inhalation of air into the lungs.
5. How does exchange of gases take place in human body?
6. Give differences in the composition of air being inhaled and exhaled.
7. What is the use of oxygen supplied to the cells of living organisms?
8. What material is used during respiration? Describe respiration in plants.​

Answer 1

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