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Biological Classification
Kingdom Monera: Modes of Nutrition
1 question from 1 paper, each with its answer.
- question
- 1
- paper
- 1
- of Biological Classification
- 0.85%
Concepts tested
- Chemoautotrophic bacteria
All Questions
2002 AIPMT 1 question
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Organisms which obtain energy by the oxidation of reduced inorganic compounds are called : -Chemoautotrophs make their own food from $CO_2$ using energy obtained by oxidising reduced inorganic substances such as ammonia, nitrite, hydrogen sulphide, ferrous iron or hydrogen.
Examples: nitrifying bacteria Nitrosomonas ($NH_3 \rightarrow NO_2^-$) and Nitrobacter ($NO_2^- \rightarrow NO_3^-$), sulphur bacteria and iron bacteria.
Photoautotrophs get their energy from light; saprozoic organisms absorb dissolved organic matter.
So such organisms are called chemoautotrophs.