telecom - (often plural) systems used in transmitting messages over a distance electronically. telecommunication. sampling - measurement at regular intervals of the amplitude of a varying waveform (in order to convert it to digital form)
The cells in vascular tissue are typically long and slender. Since the xylem and phloem function in the conduction of water, minerals, and nutrients throughout the plant, it is not surprising that their form should be similar to pipes.
These systems use continuous tubes called xylem and phloem: - Xylem vessels carry water and minerals from the roots to the leaves. - Phloem tubes carry sugar & other organic nutrients made by plant from the leaves to the rest of the plant.Structure of the xylem tissue. Xylem vessels consist of dead cells.They have a thick, strengthened cellulose cell wall with a hollow lumen. Phloem tubes carry sugar & other organic nutrients made by plant from the leaves to the rest of the plant. Structure of the xylem tissue. Xylem vessels consist of dead cells. They have a thick, strengthened cellulose cell wall with a hollow lumen.