1. Cytology
    2. 1. Tools used in Cytology
    2. Cell Biology
    3. Cell cycle
    4. Biomolecules
  2. Genetics
    3. 5. Introduction
    6. Inheritance
    7. Mutation and Polypoidy
  3. Plant Anatomy
    4. 8. Plant Anatomy
    9.
  4. Plant Physiology
    5. 10. Respiration
    11. Photosynthesis
    12. Growth and Growth hormone
    13. Mode of nutrition and Habitat in Plants
  5. Classification and Biodiversity
    6. 14. Classification
    15. Virus
    16. Bacteria
    17. Thallophyta
    18. Bryophyta
    19. Pteridophyta
    20. Gymnosperm
    21. Reproduction
    22. Morphology of Angiosperm
  6. Taxonomy, Ecology and Application of biology
    7. 23. Taxonomy
    24. Ecology
    25. Application of Biology
Classification and Biodiversity
16. Bacteria
1. Nitrosomonas is: [IOM - 1997]

[IOM - 1997]

  • Phototrophic
  • Chemotrophic
  • Symbiotic
  • Photosynthetic
2. The bacteria found in the root nodules of Leguminaceae is: [IOM -1999]

[IOM -1999]

  • Rhizobium
  • Bacillus
  • Clostridium
  • Thiobacillus
3. Denitrifying bacteria convert: [IOM - 1999]

[IOM - 1999]

  • Atmospheric N2 to NO3
  • NO3 to NO2
  • Nitrate to atmospheric N2
  • None
4. Which of the following is rod shaped bacteria? [MOE - 2064]

[MOE - 2064]

  • Coccus
  • Bacillus
  • Spirillum
  • Vibrio
5. Bacteria in an ecosystem act as: [MOE-2060]

[MOE-2060]

  • Producer
  • Pri-consumer
  • Sec-consumer
  • Decomposer
6. Circular DNA is found in: [MOE - 2063]

[MOE - 2063]

  • Bacteria
  • Algae
  • Fungi
  • None
7. On unusual condition one of the following bacteria produces spore [IE - 2002]

[IE - 2002]

  • Actinomycetes
  • Mycoplasma
  • Chlamydiae
  • Cyanobacteria
8. In plants, fungi and bacteria, the proton pump in cells creates a negative membrane potential transporting which ion from the cytoplasm to the extracellular fluid? [IE - 2002]

[IE - 2002]

  • K+
  • Na+
  • H+
  • Ca++
9. Most primitive organisms are [IE -2003]

[IE -2003]

  • Monerans
  • Protist
  • Fungi
  • Algae
10. In general bacteria, genes are regulated at: [IE - 2006]

[IE - 2006]

  • Transcription
  • Post transcription
  • Translation
  • Post-translation
11. Nitrogen fixation by organism requires conditions that are: [IE - 2007]

[IE - 2007]

  • Anaerobic
  • Saturated with sunlight
  • Highly alkaline
  • Free of water
12. Cyanobacteria are [IE - 2008]

[IE - 2008]

  • Photosynthetic bacteria
  • Nitrogen fixing bacteria
  • Chemoautotroph
  • Blue Green Algae
13. Which of the following kingdoms consist organism that can fix nitrogen? [IE - 2009]

[IE - 2009]

  • Monera
  • Protista
  • Fungi
  • Plantae
14. Archaebacteria contains [IE - 2005]

[IE - 2005]

  • Pseudomonas
  • Methanogens
  • Cyanophyceae
  • Green sulphur
15. What is wrong about fertility factor F+ present in bacteria? [BPKIHS 2002]

[BPKIHS 2002]

  • It is present in male strain
  • It is situated in plasmid
  • It can be transfered to female strain making it male strain
  • Having fertility factor, male strain has pili
16. Which is incorrect about bacteria? [BPKIHS 2002]

[BPKIHS 2002]

  • They lack cell wall
  • Few are chemoheterotrophs
  • They have cell wall
  • None
17. "Little leaf of brinjal" is caused by: [BPKIHS 2004]

[BPKIHS 2004]

  • Bacteria
  • Virus
  • Fungi
  • Mycoplasma
18. Which of the following bacteria reduces the nitrates into gaseous form of Nitrogen? [BPKIHS 2006]

[BPKIHS 2006]

  • Pseudomonas species
  • Nitrospora species
  • Nitrocystic species
  • Nitrosogloes species
19. E. coli in human intestine is present as [BPKIHS 2004]

[BPKIHS 2004]

  • Commensal
  • Symbiotic
  • Parasite
  • Saprophyte
20. Bacterial DNA is identified as: [BPKIHS 2006]

[BPKIHS 2006]

  • DNA only
  • DNA without histone
  • DNA with histone
  • DNA and RNA
21. Which of the following is nitrifying bacteria [BPKIHS 2006]

[BPKIHS 2006]

  • Pseudomonas
  • Nitrobacter
  • Azotobacter
  • Rhizobium
22. A bacterial cell divides every 20 minutes. After time period of 3 hrs, how many bacterial cell will be there? [BPKINS - 2016]

[BPKINS - 2016]

  • 64
  • 128
  • 512
  • 1092
23. Plasmids are [BPKIHS - 2014]

[BPKIHS - 2014]

  • Small particles of RNA and protein
  • Extrachromosomal DNA of bacteria
  • Small coils of RNA
  • Small photosynthetic particles of bacteria
24. Bacteria without flagella is  [BPKIHS - 2013]

[BPKIHS - 2013]

  • Monotrichous
  • Peritrichous
  • Amphitrichous
  • Atrichous
25. Bacteria are  [BPKIHS - 2011]

[BPKIHS - 2011]

  • Producer
  • Consumer
  • Decomposer
  • Photosensitizer
26. Bacterial DNA is  [BPKIHS - 2012]

[BPKIHS - 2012]

  • Circular
  • Straight
  • Hellicle
  • None
27. Bacteria without flagella is   [IOM-2016]

[IOM-2016]

  • Peritrichous
  • Atrichous
  • Amphitrichous
  • Lophotrichous
28. Atmospheric nitrogen is converted to nitrogenous compound is [IOM-2016]

[IOM-2016]

  • Denitrifying bacteria
  • Nitrifying bacteria
  • N2 fixing
  • Free living
29. Which of the following bacteria shows darting type mortality? [IOM-2014]

[IOM-2014]

  • Vibrio
  • Coccus
  • Spirochaetae
  • Clostridium
30. Nitrosomonas is  [IOM-209]

[IOM-209]

  • Photoautotroph
  • Anaerobe
  • Chemoautotroph 
  • Symbiotic
31. Which one of the following is a free living aerobic nitrogen fixing bacteria?  [IOM-2013]

[IOM-2013]

  • Azotobacter
  • Rhizobium
  • Clostridium
  • Anabaena
32. The viral infection cycle that will cause the viral DNA to become integrated into the bacterial DNA is called  [IOM-2015)

[IOM-2015)]

  • Lysogenic cycle
  • Lysozyme cycle
  • Lytic cycle
  • Lysel cycle
33. Spherical bacterium is referred as  [MOE 2014

[MOE 2014]

  • Vibrio
  • Coccus
  • Bacillus
  • Spirillum
34. Which one of the following is absent in bacteria?  [MOE 2012)

[MOE 2012)]

  • Cell wall
  • Nucleoid
  • Ribosome
  • Mitochondria 
35. Rod shaped bacteria are called  [MOE 2068)

[MOE 2068)]

  • Bacilli
  • Cocci
  • Sprillia
  • Comma
36. Akinetes occur in  [MOE 2010)

[MOE 2010)]

  • Nostoc
  • Mucor
  • Marchantia
  • Pteridium