Bidirectional translocation of solutes takes place in :

Options

A. Parenchyma
B. Cambium
C. Xylem
D. Phloem

Answer

To solve the question regarding where bidirectional translocation of solutes takes place, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Translocation**:
- Translocation refers to the movement of substances within an organism. In plants, this usually involves the movement of nutrients and minerals.

2. **Identifying the Types of Vascular Tissues**:
- Plants have two main types of vascular tissues: xylem and phloem.
- Xylem is responsible for the transport of water and minerals from the roots to the leaves, and it operates in a unidirectional manner (one direction only).

3. **Understanding Phloem Function**:
- Phloem, on the other hand, is responsible for the transport of organic nutrients (especially sugars produced during photosynthesis) throughout the plant.
- The movement in phloem is bidirectional, meaning it can transport nutrients both from the leaves to other parts of the plant and from the roots upwards.

4. **Evaluating Other Options**:
- The question mentions other options like parenchyma and cambium.
- Parenchyma is a type of plant tissue that serves as a supporting structure and does not participate in translocation.
- Cambium is a layer of tissue that produces new cells and is involved in the growth of the plant but does not directly transport nutrients.

5. **Conclusion**:
- Based on the functions of these tissues, we can conclude that bidirectional translocation of solutes occurs in phloem.

### Final Answer:
The correct answer is **phloem**.

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