Lect09S2011 - Anatomy of Anatomy Flowering Plants Plant...

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Anatomy of Flowering Plants Anatomy of Flowering Plants
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Plant Anatomy Plant Anatomy Summary: Organization of plant body: Cell types Tissue types Their functions. Development of plant body
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Plant Anatomy Plant Anatomy Plant vs animal growth: Animal cell growth due to synthesis of organic material to cytoplasm. Plant cell growth due to water uptake by cell vacuole, pliable cell wall stretches. Accounts for 90% of cell growth.
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Growth in Animal and Plant Cells Growth in Animal and Plant Cells Animals have Animals have determinate determinate growth growth . Grows only to certain . Grows only to certain size. size. Adult animal cell type cannot become different cell types. Plant vs animal cell division:
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Growth in Animal and Plant Cells Growth in Animal and Plant Cells Plants have indeterminate growth . Plants continue to grow as long as they are alive. Plant cells, if alive, are totipotent totipotent : able give rise to other cell types or entire organism. Plant vs animal cell division:
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Shapes of Plant Cells Shapes of Plant Cells Orientation of microfibrils determine cell shape.
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Response to Environmental Cues Response to Environmental Cues Genetic plasticity. Changes in form seasonal.
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The Plant Body The Plant Body Structures and Functions of Plants Structures and Functions of Plants
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Primary Functions of Organs Primary Functions of Organs Three organs in plants Root : Absorb water and minerals, and anchors plant to soil. Stem : Leaves : Site of photosynthesis Path of water, minerals and food. Raises leaves and flowers above ground. Shoot
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Plant Organs Plant Organs Organs composed of tissues : aggregation of cell type(s) to perform specific function(s) Tap Roots Leaves Stem
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Node Node : Area of stem where leaves are borne. Structures of Shoot
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Lect09S2011 - Anatomy of Anatomy Flowering Plants Plant...

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