NEET2010BotanyBiological ClassificationActual
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 algae, which fixes atmospheric nitrogen. C. Chemosynthetic autotrophic bacteria synthesize cellulose from glucose. D. Mycoplasma lack a cell wall and can survive without oxygen.
Options
- AB, C
- BA, B, C
- CB, C, D
- DA, B, D
Correct answer
D. A, B, D
Step-by-step solution
Methanogens are archaebacteria, which produce methane in marshy areas. Nostoc is a blue-green alga, which fixes atmospheric nitrogen. Chemosynthetic autotrophs oxidize inorganic substances to produce energy and help in the cycling of minerals. Mycoplasmas are a group of eubacteria that lack a rigid cell wall and can survive without oxygen.