plant transport systems

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  • Created by: vanessa
  • Created on: 16-12-13 12:30
what is transpiration
water evaporating of the surface of leaves
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where has the most stomata
the lower epidermis so the least evaporation takes place
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explain the mass potometre
as the water goes up in the plant, the oil will lower so we can see how much has moved, and the oil stops water evaporating
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why are water molecules pulled up through the xylem
they are cohesive
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four factors that affect transpiration?
wind, heat, humidity, light
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four differences between the xylem and the phloem
1. xylem carries water and minerals, phloem carries sugars, xylem = passive phloem = active, xylem = up phloem = all direction, xylem cells = dead, phloem cells = alive
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what are vascular bundles
bunches of xylem and phloem vessels in the stem/leaves/roots
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Card 2

Front

where has the most stomata

Back

the lower epidermis so the least evaporation takes place

Card 3

Front

explain the mass potometre

Back

Preview of the front of card 3

Card 4

Front

why are water molecules pulled up through the xylem

Back

Preview of the front of card 4

Card 5

Front

four factors that affect transpiration?

Back

Preview of the front of card 5
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