Addition of new cell wall particles amongst the existing ones is

Options

A. deposition
B. apposition
C. intussusception
D. aggregation

Explanation

To solve the question regarding the addition of new cell wall particles amongst the existing ones, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking about the process by which new cell wall particles are added among existing ones.

2. **Identify Key Terms**: The terms mentioned in the video transcript are:
- Deposition
- Opposition
- Intersusception
- Aggregation

3. **Analyze Each Term**:
- **Deposition**: This generally refers to the laying down of material, but it does not specifically refer to the addition of new particles among existing ones.
- **Opposition**: This term is not commonly used in the context of cell wall formation.
- **Intersusception**: This term refers to the process where new materials are inserted among existing structures, which fits the description given in the question.
- **Aggregation**: This typically refers to the clustering of particles rather than their integration among existing structures.

4. **Select the Correct Answer**: Based on the analysis, the correct term that describes the addition of new cell wall particles among existing ones is **Intersusception**.

5. **Conclusion**: Therefore, the answer to the question is **Intersusception**.

### Final Answer:
The addition of new cell wall particles amongst the existing ones is known as **Intersusception**.

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