EVERYDAY SCIENCE

Detailed explanation-1: -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.

Detailed explanation-2: -Phloem, the vascular tissue responsible for transporting organic nutrients around the plant body, carries dissolved sugars from the leaves (their site of production) or storage sites to other parts of the plant that require nutrients.

Detailed explanation-3: -Parenchyma cells serve as the site for storage of sugar and starch in stem and roots. Sieve tube members and companion cells are the living component of phloem and serve in the transport of sugar from one part of the vascular plant to another.

Detailed explanation-4: -Sugars move (translocate) from source to sink, but how? The most commonly accepted hypothesis to explain the movement of sugars in phloem is the pressure flow model for phloem transport.

Detailed explanation-5: -Companion cells function to load and unload sugars into the cavity of sieve tube members.