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11 Cards in this Set
- Front
- Back
proton pumps pump H+ where
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out of cytosol into extracellular fluid,
provides for cations into and anions and cotransport of anions and neutrals |
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four parts of vascular cylinder from outer to inner
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endodermis, pericycle, sieve tubes in phloem, tracheids and vessels in xylem
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job of casparian strip is to make sure water and minerals enter the vascular cylinder through what kind of cell?
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endodermal cells
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how is xylem transport powered?
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solarly
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the movement of a fluid due to a difference in pressure between two locations; long distance movement of water in xylem
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bulk flow
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describe phloem translocation
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source - goes into phloem as well as H20
-moves down phloem in response to high pressure and into sink, sugar moves into sink cell, and water goes back into xylem |
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needs of water in plants
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-replace water lost through stomata
-transport minerals -maintain turgor -metabolic activities |
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loss of water through leaf
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transpiration
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water pulled onto leaf from xylem by
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cohesion, adhesion, tension
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movement of sugar
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translocation
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roots, fruits, flowers, leaf buds, where sugars are moved to
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sinks
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