Phloem is also the other type of vascular tissue introduced by Carl Nageli in 1858. Phloem Definition. Xylem also offers mechanical support to the plant. • Phloem: Phloem is derived from Greek word “phlois” means bark. https://alevelbiology.co.uk/gcse/xylem-and-phloem-cells-in-plants Xylem moves water from roots to the leaves, and phloem moves food from the leaves to the rest of the plant. Phloem-It consists of four of elements: sieve tubes, companion cells, phloem fibres and the phloem parenchyma. Content: Xylem Vs Phloem. Plants perform a similar function of transporting these nutrients — what we know as sap, by using complex tissues called xylem and phloem.Xylem is the dead, permanent tissue that carries water and minerals from roots to all other parts of the plant. The exchange rates of mineral cations in the xylem and phloem between root and shoot of white lupin (Lupinus albus L., cv. Main function of phloem is transport of food from source to sink. the xylem and phloem are found near the outside to provide a sort of scaffolding that reduces bending These cells are also living cells and are not lignified. • Xylem: Xylem is derived from Greek word “xylon” means wood. This lesson describes how the structures of the xylem vessel elements, phloem sieve tube elements and companion cells relates to their functions. These systems use continuous tubes called xylem and phloem. Plants have transport systems to move food, water and minerals around. Sieve tubes are columns of sieve-tube cells with perforations on the lateral wall through which the food substances travel. why is this? The xylem parenchyma is responsible for storing the prepared food and assists in the conduction of water. •Vascular system: A vascular system consists of xylem and phloem. They collaborate as a spot to trigger efficacious carriage of foodstuff, vitamins, minerals as well as water. Xylem is mainly concerned with conduction of water. Phloem coupled with xylem are intricate tissues that execute carriage of food supplements and water in a plant. Xylem floem. Functions of xylem tube: The chief function of xylem tissues is … Their function is to efficiently transport the materials which can be food, water, nutrients, organic materials, etc. What is Phloem? The primary function of the xylem is to transport water and nutrients to all regions, but it is also involved in replacing water lost through transpiration and photosynthesis. During transpiration water evaporates from the leaves and draws water from the roots. Phloem, like xylem, is comprised of several specialized cells like sieve tubes, companion cells, phloem fibers, and phloem parenchyma. Schmitz K, Schneider A (1989) Structure and development of sieve cells in the secondary phloem of Larix decidua Mill, as related to function. 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