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: -In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), particularly sucrose; a sugar, to all parts of the plant.

Detailed explanation-3: -Translocation refers to the transfer of sucrose and other compounds, such as amino acids, throughout a plant. Translocation is the movement of elements within a plant from leaves to other tissue. Plants’ phloem, a type of vascular tissue, is where translocation takes place.

Detailed explanation-4: -Translocation through phloem can be either upward or downward depending upon the plant needs. For example, in the spring, sugar stored in root or stem tissue would be transported to the buds which need energy to grow. Translocation through xylem is unidirectional.

Detailed explanation-5: -Phloem: In the case of plants, the synthesized food is stored by various storage organs which include-stems, fruits, roots, etc. The vascular tissue, phloem helps in the transportation of the synthesized food from the leaves to various storage organs.