Question

What is the direction of movement of sugars in
phloem ?​

Answer 1

Pressure Flow. The mechanism by which sugars are transported through the phloem, from sources to sinks, is called pressure flow. At the sources (usually the leaves), sugar molecules are moved into the sieve elements (phloem cells) through active transport.

Answer 2

Answer:

Bi-directional

Explanation:

• Food is transported by vascular  tissue phloem from a source to sink.
• Source is a part that synthesises food and sink is a part that stores or needs the food.
• Since source and sink can be reversed depending on plant’s need, therefore direction of  movement of sugar in phloem can be bidirectional,  i.e., both upwards or downwards.