Transport in plants bio exam 3

By HaleySpotts, Apr 2012

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

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