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NEET 2010 Biology question

BiologyBiological ClassificationNEET 2010

Select the correct combination of the statements (a-d) regarding the characteristics of certain organisms. (a) Methanogens are archaebacteria which produce methane in marshy areas (b) Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen (c) Chemosynthetic autotrophic bacteria synthesize cellulose from glucose (d) Mycoplasma lack a cell wall and can survive without oxygen. The correct statements are

Answer: (1)

Solution

(a) True: methanogens are archaebacteria living in marshy areas and in the guts of ruminants, producing methane (biogas) from organic matter. (b) True: Nostoc is a filamentous cyanobacterium (blue-green alga) with heterocysts, which fixes atmospheric nitrogen. (c) False: chemosynthetic autotrophic bacteria obtain

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Question ID VK-090402