DENDROLOGY

Detailed explanation-1: -Phloem is the vascular tissue which transports food from leaves to the other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibers and phloem parenchyma cells.

Detailed explanation-2: -The one word to denote transportation of food via Phloem is “Translocation”. Sucrose and amino acids are transported by Phloem up and down through the plant. The process of translocation involves transportation of food into sieve tubes from where food can travel upward or downward to all the parts of the plant.

Detailed explanation-3: -The phloem tissue is the main pathway for the long-distance transport of assimilates from source to sink organs in plants, distributing carbohydrates produced in source tissues through photosynthesis and starch hydrolysis to sink tissues where they sustain growth and respiration or where reserve compounds are stored.