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27 Cards in this Set
- Front
- Back
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Root system |
Anchors the plant and absorbs water/nutrients |
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Shoot system |
Consists of stems, leaves, and flowers |
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Phytomers |
Repeating modules that comprise shoots |
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Bud |
An undeveloped shoot that can produce another lead, a phytomee, or a flower |
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Trachiophyte |
Alternate name for vascular plants |
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Tracheids |
Conduct water internally within xylem |
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Vascular cylinder |
Usually in center of roots and stems |
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Pits |
The holes found in the tracheids |
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Vessel |
Alternate to tracheids used by flowers |
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Guard cell |
Opens and closes stoma, regulated by water levels |
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Turgid |
Guard cells are open when they are |
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Apoplast |
When water moves through cell walls and intercellular places |
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Sieve cell |
Used by phloem in primitive vascular plants and ferns |
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Pressure-flow model |
Propels food through phloem |
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Water potential |
Tendency of a solution to take up water from pure water across a membrane |
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Solute potential |
Component of water potential that is due to the presence of solute particles |
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Turgor pressure |
Water pressure |
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Turgor pressure |
Water pressure |
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Proton pump |
Uses ATP to move protons out of a cell across a concentration gradient |
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Symplast |
Network that passes through the continuous cytoplasm of living cells connected by plasmodesmata |
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Casparian strip |
Waxy, Suberin filled region of endoderm, forms hydrophobic belt |
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Transpiration-cohesion-tension |
Theory proposed to explain water transport in xylem |
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Transpiration-cohesion-tension |
Theory proposed to explain water transport in xylem |
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Transpiration |
When water vapor diffuses out of the leaf |
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Translocation |
Movement of carbohydrates and other solutes through membrane |
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Source |
An organ that produces more carbs than it uses |
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Sink |
An organ that consumes carbs for growth and storage |
