(i) Upward movement of sap or water from roots to leaves.
(ii) Regulates temperature.
(iii) Under optimal condition, leaf can transpire its own weight of water in less than an hour.
(iv) Phloem tissues helps in the transport of food.
(v) Food is transported in both upward and downward directions.
(vi) Transport of food in phloem required energy in the form of ATP.
