Question

Does the process of translocation of food substances occur only in downward direction only.Explain the answer

Answer 1

Answer:

The movement of food in plants is done by phloem and we know that the phloem transport is bidirectional.

Explanation:  During the growth of a plant, its leaves act as the source of food as they carry out photosynthesis. The phloem conducts the food from the source to the sink (the part of the plant requiring or storing food). During spring, this process is reversed as the food stored in the sink is mobilised toward the growing buds of the plant, through the phloem. Thus, the movement of food in the phloem is bidirectional (i.e., upward and downward).