Multiple Choice
How does carbon dioxide enter a leaf?
A) CO2 passes through openings called stomata on the leaf surface.
B) Dissolved CO2 is transported from roots to leaves in the xylem.
C) CO2 is moved by active transport into the leaf by special cells called guard cells.
D) Atmospheric pressure forces CO2 through pits on the leaf surface.
E) CO2 diffuses through the epidermis into the mesophyll.
Correct Answer:
Verified
Correct Answer:
Verified
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