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