seed, leaf etc. Main function of phloem is transport of food from source to sink. The term phloem is derived from the Greek word – φλοιός (phloios), meaning bark. Phloem Tissues. Phloem is present in all the parts of a plant. The phloem tissue in plants transports food materials from the leaves to different parts of the plant. The transport of food from leaves to other parts of a plant is called translocation. Phloem are the vascular Plant tissues. The flow of food and nutrients is bidirectional. Phloem Definition. Xylem moves water from roots to the leaves, and phloem moves food from the leaves to the rest of the plant. Unloading at the sink end of the phloem tube can occur either by diffusion, if the concentration of sucrose is lower at the sink than in the phloem, or by active transport, if the concentration of sucrose is higher at the sink than in the phloem. Also Read: Transpiration Pull We will focus on the structure of phloem as well as how this vascular tissue actually transports food throughout a plant. Phloem. Phloem is also important as the xylem tissues for the vascular system of plants. Similarly mechanism of phloem transport can be understood by studying phloem anatomy. they are important for the vascular system. Phloem is a heterogeneous tissue composed of four different types of cells (sieve elements, companion cells. Phloem is the complex tissue, which acts as a transport system for soluble organic compounds within vascular plants.. • Source: Those organs or tissues where food is synthesized or available is known as source e.g. • So phloem is a source for transportation. They transport food and nutrients from leaves to the other growing and supporting parts of plants. a. transports food and nutrients b. transports water and minerals c. are made of dead cells d. is a type of ground tissue non-green parts of plant. Phloem parenchyma cells and phloem fibres) that are similar in origin and major function but differ in structure. 29) The process of loading and transport of food through the phloem tissue involves which of the following factors? The main activity of this tissue is to transport nutrients and food from leaves to other growing parts of plants. It contains living tissues without a nucleus. Phloem Tissue. Phloem _____. Transport in plants. Phloem transports food, while xylem transports water and dissolved minerals. The food made by the leaves is in the form of simple sugar. all of these are involved in phloem transport (osmosis, active transport, mass flow, osmotic pressure) Phloem makes vascular bundles with xylem for mechanical strength. • Sink: Those organs or tissues where food is utilized or stored are known as sink e.g. As a result, the osmotic pressure in the tissue increases forcing the water to move through it. 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