Question

homework - photosynthesis
what are these openings called and what is their major function?
guard cells, light capture
guard cells, gas exchange
stomata, light capture
stomata, gas exchange

Explanation:

Stomata are the openings on plant leaves. Their main role is gas - exchange, allowing carbon dioxide to enter for photosynthesis and oxygen to exit. Guard cells surround stomata and control their opening and closing, but they are not the openings themselves. Light capture is mainly the function of chlorophyll in chloroplasts, not stomata.

Answer:

D. stomata, gas exchange