Name one function and one deficiency symptom of the following elements :
sulphur

Explanation

**Step-by-Step Solution:**

1. **Identify the Element**: The element we are discussing is sulfur.

2. **State One Function of Sulfur**:
- Sulfur plays a crucial role in the synthesis of amino acids. It is a key component of certain amino acids such as cysteine and methionine, which are essential for protein synthesis in plants.

3. **State Another Function of Sulfur**:
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