Cohesion tension theory

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Where does water enter the plant?
The roots
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how does water enter the roots?
via osmosis down a water potential gradient
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Ions are actively transported from the roots to where?
the base of the xylem which lowers the water potential
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water is drawn out of the xylem by osmosis which creates...?
tension due to hydrogen bonds between water molecules. This pulls the water up the stem.
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when the water reaches the top of the plant, water evaporates from the cell surface into where?
the air spaces in the leaves which lowers the water potential in the cell.
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how does water vapour leave the plant?
it diffuses out of the leaves into the atmosphere via the stomata.
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Other cards in this set

Card 2

Front

how does water enter the roots?

Back

via osmosis down a water potential gradient

Card 3

Front

Ions are actively transported from the roots to where?

Back

Preview of the front of card 3

Card 4

Front

water is drawn out of the xylem by osmosis which creates...?

Back

Preview of the front of card 4

Card 5

Front

when the water reaches the top of the plant, water evaporates from the cell surface into where?

Back

Preview of the front of card 5
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