The food is translocated in:
(a) downward direction
(b) upward direction
(c) radial direction
(d) all the directions

Options

A. downward direction
B. upward direction
C. radial direction
D. all the directions

Answer

To solve the question regarding the direction of food translocation in plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Translocation**: Translocation refers to the movement of food (mainly in the form of carbohydrates like sucrose) within the plant. This process is essential for distributing nutrients from the source (where they are produced) to various parts of the plant.

2. **Identify the Tissue Involved**: The primary tissue responsible for the translocation of food in plants is called phloem. Phloem is a complex tissue composed of several types of cells, including sieve tube members and companion cells, which facilitate the movement of food.

3. **Determine the Direction of Movement**:
- Food is produced in the leaves (the source) through photosynthesis.
- From the leaves, the food can be transported to different parts of the plant (the sinks), such as roots, fruits, and growing tissues.
- Importantly, translocation is not limited to one direction; it can occur both upwards and downwards, depending on the needs of the plant.

4. **Consider Bidirectional Movement**: The movement of food in phloem is bidirectional, meaning it can occur in multiple directions:
- Downward (from leaves to roots)
- Upward (from roots to leaves or other parts)
- Radial (to the sides, reaching various tissues)

5. **Conclusion**: Since food can be transported in all these directions, the correct answer to the question is option (d) all the directions.

### Final Answer:
The food is translocated in: **(d) all the directions.**

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