Question

In part a of a plant sugar selectively transfer into the phloem tissue in part b sugar factory transported out of the phloem which way will the flow in sap move under these conditions

Answer 1

Answer:

reactions in green plants forming sugar and other substances from raw ... (the xylem and the phloem) and is called translocation. ... Movement by diffusion is passive, and may be from one part of the .

Answer 2

Answer:

Sap will flow from high to low-pressure areas in the plant. Adding sugars to the sap causes water to enter the phloem, thus increasing pressure. Removing sugars causes water to leave the phloem, thereby reducing pressure. Hence, sap will move from A to B.

Explanation:

• The mechanism which is used to transfer the sugar in phloem from the source end to the sink end is called the pressure flow mechanism.
• The sugar molecules are transported by the conducting cells in the phloem tissue in the form of sucrose. These sugar molecules are transported from the source end to the sink end. The source end is the region where the sugar is present in high concentrations. The sugar needs to be moved in the sieve elements in the source end by the process of sieve elements. Energy needs to be spent to move the sugar molecules in the form of ATP. The sugar molecules are transported through osmosis and removed from the sieve cells in the sink end by active transport.