Leaf structure: blade (lamina), petiole (stalk), midrib, veins (network or parallel). Stomata: tiny pores on leaf surface for gas exchange. PHOTOSYNTHESIS: leaves use sunlight, water (from roots), COโ (from air) to make glucose + oxygen. 6COโ + 6HโO + sunlight โ CโHโโOโ + 6Oโ. Only green plants can do this โ they are PRODUCERS.
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