Magnesium is found in

Options

A. ChlorophyII
B. Carotenoid
C. Phycobilin
D. Cytochrome

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks where magnesium is found among the given options: chlorophyll, carotenoid, phycobilin, or cytochrome.

2. **Understand the Role of Magnesium**: Magnesium is known to be an essential macronutrient for plants. It plays a crucial role in various biological processes.

3. **Analyze the Options**:
- **Chlorophyll**: This is the pigment responsible for photosynthesis in plants. It contains a porphyrin ring structure where magnesium is located at the center.
- **Carotenoid**: These are pigments that are responsible for the yellow, orange, and red colors in many plants. They do not contain magnesium.
- **Phycobilin**: These are water-soluble pigments found in certain algae. They do not contain magnesium.
- **Cytochrome**: These are proteins that play a key role in the electron transport chain in cellular respiration. They do not contain magnesium.

4. **Conclusion**: Since magnesium is a central atom in the structure of chlorophyll, the correct answer is **chlorophyll**.

5. **Final Answer**: Magnesium is found in **chlorophyll**.

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