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MCQs

Total Questions : 139 | Page 10 of 14 pages
Question 91. An ecological relationship in which one participant benefits and other is not affected is called
  1.    symbiosis
  2.    mutualism
  3.    commensalism
  4.    parasitism
 Discuss Question
Answer: Option C. -> commensalism
Answer: (c).commensalism
Question 92. Chromosome of a prokaryote is located in
  1.    cell wall
  2.    ribosome
  3.    nucleoid
  4.    endoplasmic reticulum
 Discuss Question
Answer: Option C. -> nucleoid
Answer: (c).nucleoid
Question 93. Eukaryotic cells typically have a diameter of about how many micrometers?
  1.    1
  2.    4
  3.    7
  4.    50
 Discuss Question
Answer: Option D. -> 50
Answer: (d).50
Question 94. Which of following elements is important in production of amino acids?
  1.    sulphur
  2.    copper
  3.    nitrogen
  4.    magnesium
 Discuss Question
Answer: Option C. -> nitrogen
Answer: (c).nitrogen
Question 95. Which of following is needed by obligate aerobes to respire?
  1.    sulphur
  2.    chemicals
  3.    organic nutrient
  4.    oxygen
 Discuss Question
Answer: Option D. -> oxygen
Answer: (d).oxygen
Question 96. Neisseria gonorrhoeae causes which of following?
  1.    gonorrhea
  2.    anthrax
  3.    polio
  4.    measles
 Discuss Question
Answer: Option A. -> gonorrhea
Answer: (a).gonorrhea
Question 97. Cells containing F plasmid act as which of following during conjugation?
  1.    donor
  2.    receiver
  3.    caller
  4.    taker
 Discuss Question
Answer: Option A. -> donor
Answer: (a).donor
Question 98. Which of following bacteria attacks other bacteria by attaching to their surface molecules?
  1.    vibrio cholerae
  2.    salmonella
  3.    Bdellovibrios
  4.    Thiomargarita namibiensis
 Discuss Question
Answer: Option C. -> Bdellovibrios
Answer: (c).Bdellovibrios
Question 99. Resistant form of bacteria that is dormant is called
  1.    endospores
  2.    spores
  3.    eggs
  4.    mutant
 Discuss Question
Answer: Option A. -> endospores
Answer: (a).endospores
Question 100. From which of following heterotroph organisms obtain energy?
  1.    sulphur
  2.    chemicals
  3.    organic nutrient
  4.    co2
 Discuss Question
Answer: Option C. -> organic nutrient
Answer: (c).organic nutrient

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