CO₂ Enters the Inner Spaces of the Leaf Through The

Question

CO₂ enters the inner spaces of the leaf through the
A)cuticle.
B)epidermal trichomes.
C)stoma.
D)phloem.
E)walls of guard cells.

Accepted Answer

CO₂ enters the inner spaces of the leaf through the stomata, which are small openings on the leaf surface that can be opened or closed by the guard cells. The other options listed do not directly involve the entry of CO₂ into the leaf.