PLANTS.

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Presentation transcript:

PLANTS

Evolution of Plants

Monocots and Dicots

The Plant Body

Plant Tissue Systems Dermal Vascular Cuticle Guard Cells Xylem Phloem Tracheids Vessel elements Phloem Sieve-tube members Companion cells

Xylem

Phloem

Plant Tissue Systems Ground Parenchyma Collenchyma Sclerenchyma

Ground Tissue

Plant Growth Apical meristems Primary growth Lateral meristems Secondary growth

Root Structure Epidermis Cortex Endodermis Vascular cylinder Root hairs Cortex Endodermis Casparian strip Suberin Vascular cylinder Pericycle Xylem,phloem, pith

Primary Root Growth

Primary Stem Structure Epidermis Cutin Cortex Vascular cylinder Xylem, phloem, pith Vascular cambium

Secondary Stem Structure Vascular cambium Secondary xylem Secondary phloem Cork cambium Periderm

Leaf Structure Epidermis Palisade Spongy Guard cells Vascular bundles Cuticle Cutin Palisade Spongy Guard cells Stomata Vascular bundles

Transport in Plants

Transport in Plants Osmosis Capillary action Water potential Root pressure Capillary action Adhesion Cohesion Water potential

Lateral Transport

Xylem Sap Transport Root pressure Transpirational pull Guttation Transpirational pull Adhesion / Cohesion

Control of Transpiration

Pressure Flow Model

Photoperiodism Circadian rhythm Flowering plants Phytochrome, Florigen

Plant Tropisms Gravitropism Phototropism Thigmotropism Peter Boysen-Jensen Coleoptile F.W. Went Auxin

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