The outer most layer of the cell wall connecting the two adjoining cells is known as ________

Explanation

**Step-by-Step Solution:**

1. **Identify the Structure**: The question asks for the outermost layer of the cell wall that connects two adjoining cells. In plant cells, this structure is crucial for maintaining the integrity and communication between cells.

2. **Understand the Cell Wall Composition**: The cell wall in plant cells is primarily made up of cellulose, which provides rigidity and protection. However, the cell wall is not a single layer; it consists of multiple components.

3. **Differentiate Between Layers**: The cell wall has two main components: the primary cell wall and the middle lamella. The primary cell wall is the first layer formed, while the middle lamella is the layer that acts as a glue between two adjacent cells.

...