In bioluminescence, chemical energy is changed into

Options

A. radiant energy
B. biological energy
C. mechanical energy
D. chemical energy

Answer

**Step-by-Step Solution:**

1. **Understanding Bioluminescence**:
- Bioluminescence refers to the ability of living organisms to emit light. The term can be broken down into "bio," meaning living, and "luminescence," meaning the emission of light.

2. **Chemical Energy Conversion**:
- In the process of bioluminescence, chemical energy stored in certain molecules is converted into light energy. This conversion is crucial for the phenomenon to occur.

3. **Key Molecules Involved**:
- The primary molecule involved in bioluminescence is called luciferin. An enzyme known as luciferase catalyzes the reaction that leads to the emission of light.

4. **The Reaction Process**:
- The enzyme luciferase facilitates the oxidation of luciferin. This oxidation process is what results in the emission of light, effectively converting the chemical energy into radiant energy.

5. **Identifying the Correct Answer**:
- Given the options: radiant energy, biological energy, mechanical energy, and chemical energy, the correct conversion in bioluminescence is from chemical energy to radiant energy.

6. **Final Conclusion**:
- Therefore, the answer to the question "In bioluminescence, chemical energy is changed into" is radiant energy.

**Final Answer**: Radiant energy (Option A).

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