NEET BIOLOGY

Detailed explanation-1: -Phloem is comprised of cells called sieve-tube elements. Phloem sap travels through perforations called sieve tube plates. Neighboring companion cells carry out metabolic functions for the sieve-tube elements and provide them with energy.

Detailed explanation-2: -Plants have two transport systems-xylem and phloem . Xylem transports water and minerals. Phloem transports sugars and amino acids dissolved in water.

Detailed explanation-3: -Phloem is a tissue that transports organic substances in plants such as sugar up and down the plant.

Detailed explanation-4: -The vascular system is comprised of two main types of tissue: the xylem and the phloem. The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.

Detailed explanation-5: -There are tubes for transporting water and food in plants. The water-carrying tubes are called xylem. They transport water and dissolved substances from the roots to all parts of a plant. The food-carrying tubes are called phloem.