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

Explanation

### Step-by-Step Solution:

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

2. **Function of Magnesium**:
- Magnesium is absorbed by plants in the form of magnesium ions (Mg²⁺).
- One of its key functions is that it is involved in the synthesis of RNA and DNA.
- Additionally, magnesium helps maintain the structure of ribosomes, which are essential for protein synthesis.
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