An organism (typically a bacterium or a protozoan) that obtains energy through chemical process, which is by the oxidation of electron donating molecules from the environment, rather than by photosynthesis.
We are going to get a working definition of chemoautotroph and look at some examples of organisms that are classified as chemoautotrophs. We will cover the importance of chemoautotrophs in our world. The archaea and bacteria that are chemotrophs in the deep sea vents tend to be the main producers of food for their ecosystem. Nitrogen-fixing bacteria are another example of chemoautotrophs. They use the nitrogen that is located in the soil as an energy source and convert it into nitrates. Chemotrophs are organisms that obtain energy by the oxidation of electron donors in their environments. These molecules can be organic (chemoorganotrophs) or inorganic (chemolithotrophs). The chemotroph designation is in contrast to phototrophs, which utilize solar energy. Most are bacteria or archaea that live in hostile environments such as deep sea vents and are the primary producers in such ecosystems. Chemoautotrophs generally fall into several groups: methanogens, halophiles, sulfur oxidizers and reducers, nitrifiers, anammox bacteria, and thermoacidophiles. Chemoautotroph [edit]. Chemoautotrophs (or chemotrophic autotroph) (Greek: Chemo (χημία) = chemical, auto (αὐτός) = self, troph (τροφιά) = nourishment), in addition to deriving energy from chemical reactions, synthesize all necessary organic compounds from carbon dioxide. Most are bacteria or archaea that live in hostile environments such as deep sea vents and are the primary producers in such ecosystems. Chemoautotrophs generally fall into several groups: methanogens, halophiles, sulfur oxidizers and reducers, nitrifiers, anammox bacteria, and thermoacidophiles. Chemoheterotroph. Definition. noun, plural: chemoheterotrophs. An organism deriving energy by ingesting intermediates or building blocks that it is incapable of creating on its own. Supplement. Most chemoheterotrophs obtain energy by ingesting organic molecules like glucose. Chemoautotrophs use inorganic energy sources, such as hydrogen sulfide, elemental sulfur, ferrous iron, molecular hydrogen, and ammonia. Most are bacteria or archaea that live in hostile environments such as deep sea vents and are the primary producers in such ecosystems. Chemoautotrophs generally fall into several groups: methanogens, halophiles, sulfur oxidizers and reducers, nitrifiers, anammox bacteria, and thermoacidophiles. A chemoautotroph is an archaea that make their food using chemical energy rather than energy from sunlight. Phototrophs-plants and algae, use the sun's en … ergy and photosynthesis. Chemoautotrophs-are all bacteria capable of capturing their energy for producing nutrients from chemical processes like hydrothermal vents in the ocean. There are also chemotrophs who are heterotrophic-consuming other organisms, too. Chemoautotroph. Definition. noun, plural: chemoautotrophs. An organism (typically a bacterium or a protozoan) that obtains energy through chemical process, which is by the oxidation of electron donating molecules from the environment, rather than by photosynthesis. Supplement. We should break this word down in order to gain an understanding of what this term is describing. There are three main parts to this word: chemo-, auto-and-troph. You can probably guess that chemo-means chemicals and that auto-means self. The archaea and bacteria that are chemotrophs in the deep sea vents tend to be the main producers of food for their ecosystem. Nitrogen-fixing bacteria are another example of chemoautotrophs. They use the nitrogen that is located in the soil as an energy source and convert it into nitrates. An organism, typically a bacterium, which derives energy from the oxidation of inorganic compounds. Example sentences. 1  These so-called chemoautotrophs use the stored energy of certain chemicals [usually sulfides such as hydrogen sulfide or iron sulfide (FeS 2)] to drive chemosynthesis. 
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what does chemoautotroph mean