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MCQs

Total Questions : 219 | Page 16 of 22 pages
Question 151. The sum total of all the chemical reactions taking place inside the cell, represent the cell’s _______________
  1.    Metabolism
  2.    Catabolism
  3.    Anabolism
  4.    Regulation
 Discuss Question
Answer: Option A. -> Metabolism
Answer: (a).Metabolism
Question 152. German embryologist, Hans Driesch used which organism’s embryo in his studies?
  1.    Star-fish
  2.    Sea-urchin
  3.    Whale
  4.    Monkey
 Discuss Question
Answer: Option B. -> Sea-urchin
Answer: (b).Sea-urchin
Question 153. Which are the two most important macromolecules of a cell?
  1.    Proteins, Carbohydrates
  2.    Nucleic Acids, Lipids
  3.    Nucleic Acids, Proteins
  4.    Lipids, Carbohydrates
 Discuss Question
Answer: Option C. -> Nucleic Acids, Proteins
Answer: (c).Nucleic Acids, Proteins
Question 154. The genetic material of a prokaryote is present in the ______________
  1.    Nucleus
  2.    Cytoplasm
  3.    Nucleoid
  4.    Plasmid
 Discuss Question
Answer: Option C. -> Nucleoid
Answer: (c).Nucleoid
Question 155. Motor proteins help in regulation which activities in a cell?
  1.    Mechanical
  2.    Chemical
  3.    Uptake
  4.    Regulation
 Discuss Question
Answer: Option A. -> Mechanical
Answer: (a).Mechanical
Question 156. F-plasmid contains ______________
  1.    Only OriV
  2.    Only OriT
  3.    Both OriV and OriT
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Both OriV and OriT
Answer: (c).Both OriV and OriT
Question 157. Exotoxins are produced by _______________
  1.    All prokaryotes
  2.    Gram positive bacteria
  3.    Gram negative bacteria
  4.    Archaea
 Discuss Question
Answer: Option B. -> Gram positive bacteria
Answer: (b).Gram positive bacteria
Question 158. Which is the main building block of cilia?
  1.    Tubulin
  2.    Nexin
  3.    Dyenin
  4.    Actin
 Discuss Question
Answer: Option A. -> Tubulin
Answer: (a).Tubulin
Question 159. Which of the following is not a difference between cilia and flagella?
  1.    Cilia is short hairlike; flagella is long thread-like
  2.    Nexin present in cilia; Nexin absent in flagella
  3.    Axoneme present in cilia; Axoneme absent in flagella
  4.    Rapid rotational motion of Flagella; Sweeping slow movement of cilia
 Discuss Question
Answer: Option C. -> Axoneme present in cilia; Axoneme absent in flagella
Answer: (c).Axoneme present in cilia; Axoneme absent in flagella
Question 160. Which of the following is absent in Gram- negative bacteria and present in Gram- positive bacteria?
  1.    Teichoic acids
  2.    Periplasmic space
  3.    Outer membrane
  4.    Lipopolysaccharide
 Discuss Question
Answer: Option A. -> Teichoic acids
Answer: (a).Teichoic acids

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