Middle lamella is made up of

Options

A. cellulose
B. protein
C. calcium and magnesium pectate
D. lipids and lignin

Answer

**Step-by-Step Solution:**

1. **Understanding Cell Walls**: The plant cell wall consists of three main layers: the middle lamella, the primary cell wall, and the secondary cell wall.

2. **Identifying the Middle Lamella**: The middle lamella is the layer that lies between the primary walls of two adjacent plant cells. It acts as a cementing layer, helping to hold the cells together.

3. **Composition of the Middle Lamella**: The primary constituents of the middle lamella are calcium pectate and magnesium pectate. These substances are important for the structural integrity of the cell wall.

4. **Additional Components**: While the main components are calcium and magnesium pectate, there are also protein substances present in smaller amounts.

5. **Conclusion**: Therefore, the middle lamella is primarily made up of calcium and magnesium pectate.

**Final Answer**: The middle lamella is made up of calcium and magnesium pectate.

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