air
capillary
It lets in CO2 for the process of cellular respiration. It also lets CO2 out during photosynthesis.
Carbon dioxide.
Oxygen and Carbon Dioxide.
Oxygen and carbon dioxide.
During the stage of photosynthesis, the exchange of gases occur in the leaves.
i think its photosynthesis
carbon dioxide
The stoma performs that function.
I dont think so because it lets our gases.
CO2 is taken in by the plants from the atmosphere and O2 is released during photosynthesis.
Photosynthesis