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

Explanation

### Step-by-Step Solution:

1. **Identify the Element**: The element in question is molybdenum.

2. **State One Function of Molybdenum**:
- Molybdenum is an essential component of enzymes involved in nitrogen metabolism. Specifically, it plays a crucial role in two major enzymes:
- The first enzyme converts nitrate (NO3-) to nitrite (NO2-).
- The second enzyme converts nitrite to ammonia (NH3), which is then used for the production of amino acids.
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