The movement of food in soluble form within the vascular bundles to all parts of the plant is known as

1. Analyze the question The question asks for the term describing the movement of soluble food (mainly sucrose) through the vascular bundles (specifically the phloem) to all parts of the plant.

2. Explain the concept Plants have two main transport tissues:

• Xylem carries water and mineral salts upward from the roots.
• Phloem carries manufactured food (sucrose and amino acids) from the leaves, where photosynthesis occurs, to the growing points, roots, fruits and storage organs.

The movement of manufactured food in the phloem is called translocation.

3. Go through the options

• A. Diffusion: movement of molecules from high to low concentration. It is a general physical process and not specific to food in the vascular bundles.
• B. Evaporation: the change of liquid water to vapour. It has nothing to do with food movement.
• C. Transportation: a general word, not the correct biological term for this process.
• D. Translocation: the movement of dissolved food substances through the phloem to all parts of the plant. This matches the question.
• E. Transpiration: the loss of water vapour from the leaves through the stomata. It is not about food.

4. Answer The correct option is D. Translocation.

5. Exam tip Remember the link: Translocation = Transfer of food, and Transpiration = water loss. Both words start with "Trans", so students often mix them up. Ask yourself: "Is it food or water?" Food in the phloem means translocation. Water loss from leaves means transpiration.