Why endodermis is impervious to water?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Endodermis**: The endodermis is a layer of cells in the root of a plant that acts as a selective barrier to the movement of water and nutrients.

2. **Water Movement Pathways**: Water in plants can move through two main pathways:
- **Apoplast Pathway**: This pathway involves the movement of water through the cell walls and intercellular spaces without crossing any cell membranes.
- **Symplast Pathway**: This pathway involves the movement of water through the cytoplasm of the cells, where water moves from one cell to another through plasmodesmata (small channels connecting plant cells).

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