Which of the following elements are required for chlorophyll synthesis?

Options

A. Fe and Mg
B. Mo and Ca
C. Cu and Ca
D. Ca and K

Explanation

To determine which elements are required for chlorophyll synthesis, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Chlorophyll**:
- Chlorophyll is a green pigment found in chloroplasts, which are the organelles responsible for photosynthesis in plants.

2. **Identifying Key Elements**:
- The question asks for elements necessary for the synthesis of chlorophyll. The relevant elements include magnesium (Mg) and iron (Fe).

3. **Role of Magnesium (Mg)**:
- Magnesium is a crucial component of the chlorophyll molecule. It is located at the center of the porphyrin ring, which is essential for the chlorophyll structure. Without magnesium, chlorophyll cannot be formed.

4. **Role of Iron (Fe)**:
- Iron is also important for chlorophyll synthesis. It plays a role in the structural integrity of chloroplasts and is involved in various enzymatic processes necessary for chlorophyll production.

5. **Conclusion**:
- Based on the roles of magnesium and iron, we can conclude that both elements are required for chlorophyll synthesis.

### Final Answer:
The elements required for chlorophyll synthesis are **Magnesium (Mg)** and **Iron (Fe)**.

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