Related InterviewSolutions

• The purple sulphur bacteria use hydrogen sulphide and release sulphur but not oxygen. Which of the following agrees with above observationA. The `H_(2)` that resuces `CO_(2)` comes from `H_(2)S` that liberates sulphurB. Photosynthesis does not require chlorophyllC. Photosynthesis consist of a light and a dark reactionD. The `H_(2)` which reduces `CO_(2)` in photosynthesis comes from `H_(2)O` that releases `O_(2)`
• Bacterial nucleoid consists ofA. one ssDNAB. one dsDNAC. two dsDNAD. many dsDNA
• The cell-wall material present only in bacteria and blue-green algae isA. pectinB. chitinC. muramic acidD. cellulose
• The membrane of which one of the following micro-organism is three layeredA. NostocB. MycoplasmaC. E. coliD. Rhodospirillum
• The membrane of which one of the following micro-organism is three layeredA. NostocB. ClostridiumC. E. coliD. Rhodosprillum
• Which one of the following organisms may respire in the absence of oxygenA. AzotobacterB. ClostridiumC. RhizobiumD. Lactobacillus
• Which one is the smallest organism capable of autonomous growth and reproduction Or Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygenA. VirusB. ViroidC. Mycoplasma (PPLO)D. None of the above
• Amphitrichous flagellation hasA. flagella absentB. flagella at one endC. flagella at both the endsD. flagella all around
• Nitrifying bacteria , Nitrosomonas and NitrobactorA. Convert (oxidize) ammonia or ammonium compounds into nitratesB. Convert nitrate into nitrogenC. Convert nitrogen into nitratesD. Convert dioxide into carbohydrates
• A mutant micro-organism unable to synthesize a compound required for it growth but able to grow if the compound is provided, is known asA. AuxotrophB. PrototrophC. AutotrophD. None of these