bio lt 9

dermal tissue covers and protects the plant, and controls gas exchange and water absorption

outer layer of leaves and young stems. have citucle for waterproofing

under layer of leaves. for gas exhange. has stomata

protectice tissue of secondary origin that replaces the epidermal cell

main bulk of plants. they fill most places in any plant organ. they produce food, storage, and support

site of photosynthesis. thin walled

provides structure, elongated, evenly thickened walls, stems

mechanical stiffness and strength, seeds and nut shells

complex conducting tissue, formed of more than ony cell type, fouind in vascular plants

pipeline of water and minerals from the roots to the leaves

transports sugars and amino acids from the leaves to their storage