Question

process of mass flow hypothesis​

Answer 1

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the pressure flow hypothesis also known as the mass flow hypothesis ,is the best supported theory to explain the movement of the sap through the phloem. it was purposed by Ernst munch

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Answer 2

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##ANSWER##

The Pressure Flow Hypothesis, also known as the Mass Flow Hypothesis, is the best-supported theory to explain the movement of sap through the phloem. It was proposed by Ernst Munch, a German plant physiologist in 1930. ... The movement in phloem is bidirectional, whereas, in xylem cells, it is unidirectional (upward).