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Unformatted text preview: Peridem Complex tissue Covers woody parts of plant body Epidermis Waxy cuticle redices water loss Secreted by epidermis covering aerieal parts Stomata permit gas exchange Between shoot system and atmosphere Trichomes (outgrowths or hairs) Many sizes, shapes, and functions. Growth in Plants Localized in specific regions (meristems) Unlike animals Involves 2 processes: Cell division Cell elongation Cell differentiation Primary Growth Increase in stem or root length Occurs in all plants Secondary Growth Increase in stem or root girth (thickness) In long cylinders of meristematic cells Throughout length of older stems and roots Apical Meristems Localized At tips of roots and shoots Within buds of stems Responsible for primary growth Two Lateral Meristems Responsible for secondary growth Vascular cambium Cork cambium...
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This note was uploaded on 02/29/2012 for the course BIO 123 taught by Professor Druger during the Spring '08 term at Syracuse.
- Spring '08