What is lignification?

Explanation

**Step-by-Step Solution:**

1. **Definition of Lignification**: Lignification is the process by which certain plants convert their cell walls into a woody structure, making them more rigid and strong.

2. **Purpose of Lignification**: The primary purpose of lignification is to provide structural support and strength to the plant. This is particularly important for plants that need to conduct water and nutrients efficiently.

3. **Mechanism of Lignification**: During lignification, polymers known as lignins, which are derived from various alcohol compounds, are deposited in the spaces between sugar molecules in the cell wall. This deposition increases the rigidity of the cell walls.

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