AP BIOLOGY

Detailed explanation-1: -The process of movement of food from the leaves to the other parts of the plant is called translocation. Translocation of food takes place through the phloem which carries the food produced through photosynthesis in the leaves to the other plant parts.

Detailed explanation-2: -phloem: The part of a plant that carries sugars and other products of photosynthesis from where they are made in the leaves to where they are needed.

Detailed explanation-3: -Sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant via the phloem in a process called translocation, or movement of sugar. The points of sugar delivery, such as roots, young shoots, and developing seeds, are called sinks.

Detailed explanation-4: -Phloem, the vascular tissue responsible for transporting organic nutrients around the plant body, carries dissolved sugars from the leaves (their site of production) or storage sites to other parts of the plant that require nutrients.

Detailed explanation-5: -Phloem transports carbohydrates, produced by photosynthesis and hydrolysis of reserve compounds, to sink tissues for growth, respiration and storage. At photosynthetic tissues, carbohydrates are loaded into phloem (Rennie and Turgeon 2009), a process that raises the solute concentration.