Bacteria(Microbiology ) Questions and Answers

Question 1. What type of colonies are formed by Mycoplasmas on agar plate?
  1.    colourless
  2.    coloured
  3.    lawn formation
  4.    fried-egg
Explanation:-
Answer: Option D. -> fried-egg
Answer: (d).fried-egg
Question 2. L.flagellatum performs the function of synthesizing _______________
  1.    vitamins
  2.    hormones
  3.    organic acids
  4.    folic acid and toxins
Explanation:-
Answer: Option D. -> folic acid and toxins
Answer: (d).folic acid and toxins
Question 3. The mycoplasmas require which of the following substance for growth?
  1.    Nitrogen
  2.    Carbon
  3.    Cholesterol
  4.    Glucose
Explanation:-
Answer: Option C. -> Cholesterol
Answer: (c).Cholesterol
Question 4. Which of the following family of bacteria are pathogenic for citrus and other plants?
  1.    Mycoplasmataceae
  2.    Acholeplasmataceae
  3.    Spiroplamataceae
  4.    Anaplasmataceae
Explanation:-
Answer: Option C. -> Spiroplamataceae
Answer: (c).Spiroplamataceae
Question 5. Lyticum flagellatum is an endosymbiont carried by certain strains of __________________
  1.    bacteria
  2.    fungi
  3.    viruses
  4.    protozoa
Explanation:-
Answer: Option D. -> protozoa
Answer: (d).protozoa
Question 6. Cells of Arthrobacter in the stationary phase of growth are ____________ shaped.
  1.    rod
  2.    irregularly
  3.    coccoid
  4.    rudimentary branching
Explanation:-
Answer: Option C. -> coccoid
Answer: (c).coccoid
Question 7. Which of the following genus of species occur on the surface of certain cheeses such as brick and Limburger?
  1.    Brevibacterium
  2.    Microbacterium
  3.    Cellulomonas
  4.    Arthrobacter
Explanation:-
Answer: Option A. -> Brevibacterium
Answer: (a).Brevibacterium
Question 8. The causative agent of leprosy is ________________
  1.    M.intracellulare
  2.    M.leprae
  3.    M.kansasii
  4.    M.phlei
Explanation:-
Answer: Option B. -> M.leprae
Answer: (b).M.leprae
Question 9. Mycobacteria are acid-fast organisms.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
Explanation:-
Answer: Option A. -> True
Answer: (a).True
Question 10. Which of the following genus of organisms are normal inhabitants of human mouth?
  1.    Agromyces
  2.    Arachnia
  3.    Actinomyces
  4.    Rothia
Explanation:-
Answer: Option D. -> Rothia
Answer: (d).Rothia
© Lakshya_Education.com, All Right Reserved.
Contact Us services