A plant requires nitrogen and sulphur for its

Options

A. cell walls
B. storage vacuoles
C. enzymes
D. energy stores

Answer

**Step-by-Step Solution:**

1. **Identify the Nutrients Required**: The question states that a plant requires nitrogen and sulfur.

2. **Understand the Role of Nitrogen and Sulfur**:
- Nitrogen is a crucial component of amino acids, which are the building blocks of proteins.
- Sulfur is also important for the synthesis of certain amino acids (like cysteine and methionine) and is involved in the formation of proteins.

3. **Analyze the Options**:
- **Cell Walls**: Cell walls primarily require calcium for their structural integrity.
- **Storage Vacuoles**: These vacuoles primarily store proteins and other substances, but not specifically linked to nitrogen and sulfur.
- **Enzymes**: Enzymes are proteins that catalyze biochemical reactions and are directly synthesized from amino acids, which require nitrogen and sulfur.
- **Energy Stores**: Energy storage in plants is mainly associated with carbohydrates and requires elements like phosphorus and oxygen.

4. **Conclude the Correct Answer**: Since nitrogen and sulfur are essential for the synthesis of enzymes (which are proteins), the correct answer is that a plant requires nitrogen and sulfur for its **enzymes**.

**Final Answer**: Enzymes (Option 3)

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