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Which of the following is/are Incorrect?

(1) Oxygen is not evolved during Photoautotrophic bacterial photosynthesis

(2) Chemoautotrphic bacteria obtain energy in the form of ATP by oxidising inorganic or organic compounds.

(3) in Purple sulphur bacteria (eg. Chromatium) alcohol acts as hydrogen donor

(4) Methanococcus is a Chemo-organotroph

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Chromatium or purple sulphur bacteria is a Photolithotrop. In this the hydrogen donor is an inorganic substance.
In purple sulphur bacteria (eg. Chromatium) thiosulphate acts as hydrogen donor.
answered Jun 12, 2014 by balaji.thirumalai

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