The bacteria oxidize sulfur from the worm's environment to produce the nourishment the animal needs. Helmenstine holds a Ph. Organisms that obtain energy by oxidation of electron donors are called chemotrophs.
Kelly, Donovan P. Places with chemosynthetic organisms can become oases of life in an environment often otherwise depleted of food. What is the difference between photosynthesis and chemosynthesis? Examples of chemoautotrophs include bacteria and methanogenic archaea living in deep sea vents.
But at certain spots on the ocean floor where tectonic plates meet, unique ecosystems teem with unusual animal species. InSergei Nikolaevich Vinogradskii or Winogradsky proposed a novel type of life process called "anorgoxydant".
In bacteria capable of chemoautotrophy a form a chemosynthesissuch as purple sulfur bacteria yellow globules of sulfur are present and visible in the cytoplasm. All living organisms obtain their energy in two different ways.
An organism that produces organic molecules from organic carbon is classified as a chemoheterotroph. Pyrodictium abyssi are disc-shaped cells that grow attached to networks of hollow tubes that resemble tree roots.