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Question

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called as

A
Photoautotrophs
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B
Chemoautotrophs
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C
Saprozoic
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D
Coproheterotrophs
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Solution

The correct option is B Chemoautotrophs
Organisms such as Prokaryotes, Bacteria and Archaea, obtain the energy required for metabolism from the oxidation of reduced inorganic compounds such as hydrogen, ammonia, nitrite, sulfide, hydrogen and ferrous ions. These organisms fulfill their requirement of carbon from carbon dioxide and hence can grow without organic compounds. Such organisms are referred to as Chemoautotrophs.

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