Collenchyma with irregular arrangement of cells with inter cellular spaces

Options

A. Lamellar collenchyma only
B. Angular collenchyma only
C. Lacunar collenchyma only
D. Both angular and lacunar collenchyma

Answer

To answer the question regarding collenchyma with irregular arrangements of cells and intercellular spaces, we will analyze the options provided and determine which type of collenchyma fits the description.

### Step-by-Step Solution:

1. **Understanding Collenchyma**:
- Collenchyma is a type of plant tissue that provides support, particularly in young stems and leaves. It is characterized by its living cells that have unevenly thickened cell walls.

2. **Identifying the Types of Collenchyma**:
- The question provides four options:
- Lamellar collenchyma
- Angular collenchyma
- Lacuna collenchyma
- Both angular and lacuna collenchyma

3. **Analyzing Lamellar Collenchyma**:
- Lamellar collenchyma is characterized by well-arranged cells, typically in layers. This type does not fit the description of having irregular arrangements or intercellular spaces.
- **Conclusion**: Lamellar collenchyma is NOT the answer.

4. **Analyzing Angular Collenchyma**:
- Angular collenchyma has cells that are arranged at angles, but they do not have significant intercellular spaces. The arrangement is somewhat regular.
- **Conclusion**: Angular collenchyma is NOT the answer.

5. **Analyzing Lacuna Collenchyma**:
- Lacuna collenchyma is characterized by irregular arrangements of cells and contains intercellular spaces. This type fits the description given in the question perfectly.
- **Conclusion**: Lacuna collenchyma IS the answer.

6. **Final Consideration**:
- The option "both angular and lacuna collenchyma" is incorrect because angular collenchyma does not meet the criteria of having intercellular spaces.
- Therefore, the only correct answer is lacuna collenchyma.

### Final Answer:
**Lacuna collenchyma** is the type of collenchyma with irregular arrangements of cells and intercellular spaces.

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