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HACTEHA [7]
2 years ago
5

According to the pressure-flow hypothesis, what mechanism causes the movement of phloem sap from sources to sink tissues? See Se

ction 35.4 (Page) .
A) Transpirational pull from the leaves
B) Solute potential differences between source and sink
C) Root pressure
D) Pressure potential differences between source and sink
Biology
1 answer:
Vaselesa [24]2 years ago
3 0

Answer:

D) Pressure potential differences between source and sink

Explanation:

high turgor pressure causes the movement of   phloem sap from source to sink, Sap moves through phloem via translocation, the transport of dissolved materials in a plant. Unlike the xylem, which can only carry water upward, phloem carries sap upward and downward, from sugar sources to sugar sinks.

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