When stomata are open, gases can cross the surface of the leaf. Carbon dioxide enters the leaf and oxygen exits the leaf via the stomata.
Kawakawa image: NZLogan, CC BY-NC 4.0, sourced from iNaturalistNZ.
When stomata are open, gases can cross the surface of the leaf. Carbon dioxide enters the leaf and oxygen exits the leaf via the stomata.
Kawakawa image: NZLogan, CC BY-NC 4.0, sourced from iNaturalistNZ.