Mineral ions in plants are:

Options

A. Never remobilised
B. Frequently remobilised
C. Always remobilised
D. Remobilised in the form of inorganic ions

Answer

**Step-by-Step Solution:**

1. **Understanding Mineral Ions in Plants:**
- Mineral ions are the electrically charged forms of minerals that are essential for plant growth and development. They play crucial roles in various physiological processes.

2. **Identifying the Options:**
- The question provides four options regarding the remobilization of mineral ions:
1. Never remobilized
2. Frequently remobilized
3. Always remobilized
4. Remobilized in the form of inorganic ions

3. **Analyzing the Nature of Mineral Ions:**
- Mineral ions, particularly Nitrogen (N), Phosphorus (P), and Potassium (K) — collectively known as NPK — are known to be frequently remobilized in plants. This means that these ions can be moved from older parts of the plant to newer growing tissues as needed.

4. **Conclusion on Remobilization:**
- Since NPK ions are essential for various functions in plants and are often taken up from the soil and transported within the plant, they are classified as frequently remobilized.

5. **Selecting the Correct Answer:**
- Based on the analysis, the correct answer to the question "Mineral ions in plants are?" is option 2: **Frequently remobilized**.

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