TNPSC Thervupettagam

Extracellular respiration

July 12 , 2025 17 hrs 0 min 45 0
  • The Scientists discovered new bacteria that survive by releasing electricity, not oxygen.
  • This process is called extracellular respiration.
  • It allows the bacteria to send out electrons to nearby surfaces.
  • This process enables them to generate energy in oxygen-free environments such as deep-sea vents or the human gut.
  • By doing this, they keep growing and making energy.
  • The bacteria use a natural molecule called naphthoquinone.
  • This acts like a tiny shuttle for electrons inside the cell.
  • It picks them up and carries them out to conductive surfaces nearby.
  • Once there, the electrons are released like power from a battery.
  • This method helps them break down food and stay alive.

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