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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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SMOKEY2112 SMOKEY2112
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11 years ago
Atmospheric pressure forces CO2 through pits on the leaf surface.
CO2 travels dissolved in the water in the xylem.
CO2 is moved by active transport into the leaf by special cells called guard cells.
CO2 passes through openings called stomata on the leaf surface.
CO2 diffuses through the epidermal cells into the mesophyll.
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wrote...
#1
11 years ago
It enters through the stomata where it begins the photosynthetic process. The third one.
wrote...
#2
11 years ago
CO2 passes through openings called stomata on the leaf surface - by diffusion down its concentration gradient.
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