A) As hydrostatic pressure in the phloem sieve tube increases pressure flow stops and sap is accumulated in phloem.
B) The sugar is moved bidirectionally.
C) The sugar which is transported is sucrose.
D) Loading of the phloem sets up a water potential gradient that facilitates the mass movement in the phloem.
Correct Answer: A
Solution :
: According to mass flow hypothesis, as the hydrostatic pressure in the phloem sieve tube increases, pressure flow begins, and the sap moves through the phloem.
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