Term
| What do sugars pass through? |
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Definition
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Term
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Definition
sieve tube elements (angiosperms)
sieve cells (gymnosperms) |
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Term
| what plants have companion cells? |
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Definition
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Term
| what are the contents of sieve elements? |
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Definition
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Term
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Definition
A=leaf (place with sugar)
Water enters A and pressure forces solutes (sugar) into the "sink" B
sink=some fruit |
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Term
| how does light effect movement of sugar? |
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Definition
light: shoot to root
dark: root to shoot |
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Term
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Definition
transpiration pulls water up the plant
negative potential through xylem/roots |
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Term
| what prevents water from falling back down the xylem when transpiration is not occuring? |
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Definition
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