2007-12-13 02:23:17 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Chemoautotrophs (or chemotrophic autotroph), in addition to deriving energy from chemical reactions, synthesize all necessary organic compounds from carbon dioxide. Chemoautotrophs generally only use inorganic energy sources. Most are bacteria or archaea that live in hostile environments such as deep sea vents and are the primary producers in such ecosystems. Evolutionary scientists believe that the first organisms to inhabit Earth were chemoautotrophs that produced oxygen as a by-product and later evolved into both aerobic, animal-like organisms and photosynthetic, plant-like organisms. Chemoautotrophs generally fall into several groups: methanogens, halophiles, sulfur reducers, nitrifiers, anammoxbacteria and thermoacidophiles.
2007-12-13 05:05:56 · answer #1 · answered by OKIM IM 7 · 0⤊ 0⤋
chemoautotrophs simply get their energy from the reducing substances present in their environment (Iron oxide, lead oxide, nitrite etc). They do this simply by oxidizing these substance, as these substances are oxidized the release electrons which produce energy which are used by the chemotrophs to fix the carbon and produce the organic substances. Examples:.Nitrogen fixing bacteria, Sulphur Bacteria etc...
2014-02-07 05:22:06 · answer #2 · answered by Karim 1 · 0⤊ 0⤋
Chemoautotrophs
2016-10-16 04:41:10 · answer #3 · answered by ? 4 · 0⤊ 0⤋
from breaking down chemical bonds
2007-12-13 03:33:46 · answer #4 · answered by Avery 2 · 0⤊ 0⤋
From chemicals my friend!
2007-12-13 03:06:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
chemo = radiation
autotroph = self-feeding
You can figure the rest out, right?
2007-12-13 02:56:05 · answer #6 · answered by Anonymous · 0⤊ 1⤋