Plasmodesmata maintains cell-to-cell cytoplasmic connection, and is quite common in
(a) Parenchyma
(b) Collenchyma
(c) Sclereids
(d) Sclerenchyma fibers

Options

A. Parenchyma
B. Collenchyma
C. Sclereids
D. Sclerenchyma fibers

Answer

To solve the question regarding which type of plant tissue commonly contains plasmodesmata, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Plasmodesmata**:
- Plasmodesmata are microscopic channels that traverse the cell walls of plant cells, facilitating communication and transport of materials between adjacent cells. They are crucial for maintaining cell-to-cell cytoplasmic connections.

2. **Analyzing the Options**:
- **Option (a) Parenchyma**: Parenchyma cells have thin cell walls and are known to contain numerous plasmodesmata, allowing for efficient communication and material exchange.
- **Option (b) Collenchyma**: Collenchyma cells have irregularly thickened walls, which may limit the presence of plasmodesmata compared to parenchyma.
- **Option (c) Sclereids**: Sclereids are a type of sclerenchyma cell that are typically dead at maturity and do not maintain cytoplasmic connections, hence they lack plasmodesmata.
- **Option (d) Sclerenchyma fibers**: Similar to sclereids, sclerenchyma fibers are also dead cells with thick walls, and they do not have plasmodesmata.

3. **Excluding Incorrect Options**:
- Since options (c) and (d) represent dead tissues, they do not have plasmodesmata as there is no need for cytoplasmic connections.
- Option (b) collenchyma, while alive, has thickened walls that likely reduce the presence of plasmodesmata.

4. **Identifying the Correct Answer**:
- Given that parenchyma cells have thin walls and are known to have abundant plasmodesmata, the correct answer is **(a) Parenchyma**.

### Final Answer:
The correct option is **(a) Parenchyma**.

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