Question

Which of the following parts helps in the exchange of gases in plants?

• A. Cell membrane
• B. Nucleus
• C. Stomata
• D. Guard cells

Answer 1

Answer:

C. Stomata

Stomata are small openings on leaves that facilitate the exchange of gases like oxygen and carbon dioxide in plants. The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma). Normally stomata open when the light strikes the leaf in the morning and close during the night