PATHOLOGY

Detailed explanation-1: -Phloem transport food from leaves to other parts of the plant. It also transports hormones made by the plants in their root and shoot tips to the place of their need. The transport in phloem is multidirectional i.e. can be upwards as well as downwards. Transport in phloem requires energy in the form of ATPs.

Detailed explanation-2: -Phloem transports carbohydrates, produced by photosynthesis and hydrolysis of reserve compounds, to sink tissues for growth, respiration and storage.

Detailed explanation-3: -The transport phloem has a dual function: it transports assimilates not only to terminal sinks (e.g. the roots and shoots) but also to lateral sinks along the path (e.g. the cambium) which are responsible for growth and tissue maintenance.

Detailed explanation-4: -In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), particularly sucrose; a sugar, to all parts of the plant.

Detailed explanation-5: -These compounds are transported by the phloem tissue, which allows them to go both up and down within the plant, unlike sap which moves through the xylem.