Lesson 9
Melanin Across All Life
The Original Battery
⏱ 0:44Audio Narration
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- Radiotrophic: Organisms that 'eat' radiation for energy.
- Chlorophyll: The green molecule in plants that functions as 'green melanin'.
- Mitochondria: The energy factory of your cells, which inherited melanin tools.
Bacteria use melanin to survive extreme radiation. In 1991, scientists found fungi inside the destroyed Chernobyl reactor that were actually growing toward the most radioactive areas. These radiotrophic fungi use melanin to convert deadly gamma radiation into biological energy. In plants, chlorophyll is functionally nothing more than 'green melanin' — it does the same job of harvesting light. Even your own mitochondria have a melanin-like inheritance. Across all life, melanin is the bridge between environmental energy and biological power.
Visual Aid Principle
Kingdom of Life Map — showing melanin's role in bacteria, fungi, plants, and animals.
Key Takeaways
- ◈ Melanin is one of the oldest survival molecules on Earth.
- ◈ It can convert ionizing radiation (like gamma rays) into food.
- ◈ Chlorophyll is functionally a variant of the melanin energetic system.
Apply Your Intelligence
If melanin turns light into energy in plants, what might it be doing with the light that reaches your skin?