Define translocation with respect to transport in plants. Why is it essential for plants? Where in plants are the following synthesised:

(a) Sugar (b) Hormone?

Translocation is the movement of sucrose made by plants from phloem to root cells by means of mass flow. The organic substances like sucrose and other chemicals made by plants are called assimilates which are transported in sieve elements and work together with companion cells to accomplish translocation.

Translocation is important for survival of the plant and it enables sucrose to be stored. It allows the organic molecules to be transported to regions of growth and development, to plant cells for metabolism etc.


Sugar is synthesized in leaves of plant by process of photosynthesis whereas the hormones are synthesized in all parts that are leaves, stem, root, flower, seeds.


26