Question

Why is it important to the plant that phloem moves both up and down?

Answer 1

Answer:

Phloem transports food prepared by photosynthesis in leaves to other parts of the plants. Food needs to be transported to the roots down as well as to the fruits and flowers upon the branches. Plants can store sugar in the roots and can later mobilise when other plant parts such as buds need it in the spring season. So transport by phloem is bidirectional as compared to unidirectional in the xylem.

Answer 2

Answer:

phloem have to move up and down because