How are gases exchanged in a leaf?

Gaseous exchange in a leaf occurs through stomata. During the day, plants take in carbon dioxide (CO₂) from the air through stomata for photosynthesis, and oxygen (O₂) is released as a byproduct. At night, when photosynthesis stops, plants take in oxygen for respiration and release carbon dioxide. The process occurs by diffusion, driven by concentration gradients.

Related Questions:

  1. Differentiate between:
  2. What are the conditions necessary for efficient gaseous exchange between an organism and the environment?
  3. Name the structure through which the exchange of gases can take place in plants.
  4. Name the ways through which a plant can obtain oxygen.
  5. Why should one not sleep under a tree at night?
  6. Why would very wet soil be dangerous to plants
  7. Why do plants not need a specialized respiratory system?
  8. How does the exchange of gases take place in alveoli?
  9. What is the effect of exercise on the rate of breathing?
  10. Compare inspired air and expired air.
  11. How do viral infections like COVID-19 affect bronchi?
  12. What is the importance of breathing in fresh air?
  13. What is the importance of keeping the nasal and oral cavity clear?
  14. Breathing through the nose is healthier than breathing by mouth. Why?
  15. Describe the effects of cigarette smoking on the inner walls of the trachea of human beings.
  16. The diagram shows the percentage of gases in inspired and expired air.
  17. The figure shows a healthy lung and a diseased lung.
  18. The diagram shows the structural and functional unit of the lungs.