MICROANATOMY

Detailed explanation-1: -Transport in the phloem is therefore both up and down the stem. Transport of substances in the phloem is called translocation . Phloem consists of living cells.

Detailed explanation-2: -Transport in the phloem is therefore both up and down the stem. Sucrose is the transport sugar in the phloem. Transport of substances in the phloem is called translocation . Translocation requires energy as it is an active process.

Detailed explanation-3: -It is important to the plant that the phloem moves both up and down because the movement of food and nutrients created during photosynthesis throughout the plant is accomplished by the phloem.

Detailed explanation-4: -Hence, the movement of food through the phloem is bi-directional i.e. both in upward and downward directions. The process of food transportation via the phloem requires ATP.

Detailed explanation-5: -Phloem (/ˈfloʊ. əm/, FLOH-əm) is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as photosynthates, in particular the sugar sucrose, to the rest of the plant. This transport process is called translocation.