By which part of plant translocation of food takes place ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Translocation**: Translocation refers to the movement of food (mainly in the form of glucose) from the site of production to other parts of the plant.

2. **Role of Leaves**: The leaves of the plant are the primary sites for photosynthesis, where solar energy is converted into chemical energy (food) with the help of chlorophyll.

3. **Formation of Food**: During photosynthesis, chlorophyll in the leaves captures sunlight and converts carbon dioxide and water into glucose, which is the food for the plant.

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