Movement of substances in xylem is unidirection while in phloem it is bidirectional. Explain

Explanation

### Step-by-Step Solution:

1. **Understanding Unidirectional and Bidirectional Movement**:
- Unidirectional movement means that substances move in only one direction, while bidirectional movement means substances can move in two directions.

2. **Movement in Xylem**:
- Xylem primarily transports water and minerals from the soil to the roots, then up to the stem, and finally to the leaves. This movement is unidirectional.
- The forces that facilitate this movement include:
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