What is meant by munch mass flow theory?
What is Ascent if sap?
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1)MUNCH MASS FLOW THEORY
According to the mass flow theory during photosynthesis concentration of starch increases which diffuses in sieve tubes.
Water pressure increases due to movement to water in the sieve tube and water is Trans located to the next sieve tube.
2)ASENT OF SAP
It tell us how water is transported from roots to shoots.
It moves thought xylem fibres.
Due to transpiration there is lot of pull which in turn sucks the water from root to shoot.
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