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MCQs

Total Questions : 39 | Page 3 of 4 pages
Question 21. Purple and green non-sulfur bacteria belongs to which of the following classes?
  1.    Photolithoautotrophy
  2.    Photoorganohetrotrophy
  3.    Chemolithoautotrophy
  4.    Chemoorganohetrotrophy
 Discuss Question
Answer: Option B. -> Photoorganohetrotrophy
Answer: (b).Photoorganohetrotrophy
Question 22. Name the type of bacteria which uses reduced inorganic substances as an electron source?
  1.    Autotrophs
  2.    Chemotrophs
  3.    Organotrophs
  4.    Lithotrophs
 Discuss Question
Answer: Option D. -> Lithotrophs
Answer: (d).Lithotrophs
Question 23. Which of the following bacteria does not belong to photolithoautotrophy nutritional class?
  1.    Thiomargarita namibiensis
  2.    Purple sulfur bacteria
  3.    Blue-green bacteria
  4.    Green sulfur bacteria
 Discuss Question
Answer: Option A. -> Thiomargarita namibiensis
Answer: (a).Thiomargarita namibiensis
Question 24. Name those bacteria which obtain energy from chemical compounds?
  1.    Chemotrophs
  2.    Phototrophs
  3.    Organotrophs
  4.    Heterotrophs
 Discuss Question
Answer: Option A. -> Chemotrophs
Answer: (a).Chemotrophs
Question 25. Nitrifying bacteria belongs to the nutritional class of_______
  1.    Chemoorganoautotrophy
  2.    Photolithoautrophy
  3.    Chemolithoautotrophy
  4.    Photoorganohetrotrophy
 Discuss Question
Answer: Option C. -> Chemolithoautotrophy
Answer: (c).Chemolithoautotrophy
Question 26. Which of the following species falls under the category of hydrogen-producing bacteria?
  1.    Thiobacillus thiooxidans
  2.    Nitrosomonas europaea
  3.    Nitrobacter winogradskyi
  4.    Alkaligenes eutrophus
 Discuss Question
Answer: Option D. -> Alkaligenes eutrophus
Answer: (d).Alkaligenes eutrophus
Question 27. The exact composition of complex media should be known.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 28. Name the protein which plays an important role in cell division?
  1.    Actin
  2.    FtsZ
  3.    HSP
  4.    HU
 Discuss Question
Answer: Option B. -> FtsZ
Answer: (b).FtsZ
Question 29. Which of these is NOT a selective media?
  1.    Blood agar
  2.    Eosin methylene blue agar
  3.    MacConkey agar
  4.    Mannitol salt agar
 Discuss Question
Answer: Option A. -> Blood agar
Answer: (a).Blood agar
Question 30. What is the basic taxonomic unit?
  1.    RNA
  2.    Phylogenetic tree
  3.    Species
  4.    Cell
 Discuss Question
Answer: Option C. -> Species
Answer: (c).Species

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