Bacteria which directly converts atmospheric nitrogen into nitrogen compounds are called

A. Nitrifying bacteria

B. Nitrogen fixing bacteria

C. Denitrifying bacteria

D. Putrefying bacteria

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  1. True nucleus is absent in
  2. Germ theory of disease was proposed by
  3. There is no alternation of generation in . coli due to absence of
  4. A free living bacterium capable of fixing atmospheric nitrogen is
  5. The bacteria which do not bear flagella are termed as
  6. Bacterial activity is minimum at
  7. The nuclear material in a bacteria is made up of
  8. Root nodules are formed by the symbiotic relation between the legume and
  9. Bacteria was first discovered by
  10. Which one of the following fixes CO2 into carbohydrates ?
  11. Which of the following is a best source of bacteria ?
  12. Bacteria reproduce asexually by means of
  13. Which of the following statements about bacteria is not true ?
  14. Bacteria having a tuft of flagelia at one end are called
  15. The pigment similar to chlorophyll found in green sulphur bacteria is
  16. Bacteria which directly converts atmospheric nitrogen into nitrogen compounds are called
  17. Denitrifying bacteria convert
  18. Food poisoning is generally caused by
  19. Escherichia coli is a bacterium which is a common inhabitant of
  20. Bacteria are usually classified as plants because they
  21. The Streptococcus lactis is responsible for
  22. Endospore formation takes place in which of the following bacteria ?
  23. Peptidoglycan is present in
  24. Which of the following bacteria can oxidise hydrogen sulphide to sulphur?
  25. An example of chemoautotrophic bacterium is
  26. Chlorophyll 'a' occurs in
  27. Of the following, which is not a bacterial action?
  28. Putrefying bacteria act upon
  29. Bacteria lacks:
  30. Citrus canker is a common disease of lemon and oranges. It is caused by