Question

List in order every tissue that sucrose passes through in the plant body. Start from its synthesis within chloroplasts, follow its path through the leaf, stem, and root, and end with its storage site in the roots.

Answer 1

The food is synthesized in the green photosynthetic leaves of the plants by carbon fixation. This food, mainly glucose and sucrose are assimilated by the plant for various biological functions. However, excess of food is often stored in the roots by translocation. This food material follows a particular path while getting translocated as follow:

Chloroplat - cytoplasmic vesicle - dissolved in the extracellular medium (mainly water) - phloem bed of the plant vascular system - downwards movement of the sucrose - old roots (non-apical part)- root endodermal lamella- cortex-sieve tubes-matrix

As the food material reaches the roots, it get stored here and is utilized as and when required.