Which of the following is present in the head of chlorophyll molecules

Options

A. Fe
B. Mg
C. K
D. Mn

Answer

**Step-by-Step Solution:**

1. **Understanding Chlorophyll Structure**: Chlorophyll is a green pigment found in plants that plays a crucial role in photosynthesis. It has a specific structure that includes a "head" and a "tail".

2. **Identifying the Components**: The head of chlorophyll is made up of a porphyrin ring, which is a complex structure that contains various elements.

3. **Recognizing Essential Nutrients**: Essential nutrients for plants are categorized into macronutrients (needed in larger amounts) and micronutrients (needed in smaller amounts).

4. **Focusing on Magnesium**: Among the options provided (Iron, Magnesium, Potassium, and Manganese), magnesium is known to be a key component of the chlorophyll molecule. It is essential for the formation of the porphyrin ring.

5. **Confirming the Role of Magnesium**: Magnesium not only forms part of the chlorophyll structure but also plays a vital role in activating enzymes involved in photosynthesis and respiration.

6. **Conclusion**: Therefore, the element present in the head of chlorophyll molecules is Magnesium.

**Final Answer**: Magnesium (Option 2).

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