Cell Wall MCQ

Test your knowledge with important Cell Wall MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Cell Wall MCQs at Bissoy

• Bayer’s junctions are sites which help in joining which of the following?
  ক

  cytoplasmic membrane and outer membrane

  খ

  outer membrane and capsule

  গ

  cytoplasmic membrane and periplasmic space

  ঘ

  peptidoglycan layer and cytoplasmic membrane
• Gram-negative bacteria are more resistant to antibiotics due to the presence of?
  ক

  Thin peptidoglycan wall

  খ

  Outer lipopolysaccharide layer

  গ

  Porin proteins

  ঘ

  Teichoic acid
• NAG and NAM of peptidoglycan layer is linked by _________
  ক

  beta-(1,4) glycosidic linkage

  খ

  alpha-(1,4) glycosidic linkage

  গ

  alpha-(1,6) glycosidic linkage

  ঘ

  beta-(1,6) glycosidic linkage
• Porins are special proteins act as channels in the outer membrane of Gram-negative bacteria.
  ক

  True

  খ

  False
• Which among the following acts as receptors for bacteriophage attachment in Gram-negative bacteria?
  ক

  Cilia

  খ

  O antigens

  গ

  Lipid A

  ঘ

  Teichoic acid
• The outer membrane of the Gram-negative cell wall is anchored to the underlying peptidoglycan by means of which of the following?
  ক

  Braun’s Lipoprotein

  খ

  Phospholipids

  গ

  Proteins

  ঘ

  Lipopolysaccharide
• Cord factor is a ___________
  ক

  protein

  খ

  teichoic acid derivative

  গ

  mycolic acid derivative

  ঘ

  carbohydrate
• Teichoic acid present in Gram-positive bacteria can bind to which ion?
  ক

  Fe ions

  খ

  Phosphorus ions

  গ

  Mg ions

  ঘ

  Sulphur ions
• Peptidoglycan is made up of __________
  ক

  N-acetylglucosamine

  খ

  N-acetylmuramic acid

  গ

  N-acetylglucosamine, N-acetylmuramic acid

  ঘ

  N-acetylglucosamine, N-acetylmuramic acid, amino acids
• Peptidoglycan layer is present in large quantity in?
  ক

  Gram-positive bacteria

  খ

  Gram-negative bacteria

  গ

  Fungi

  ঘ

  Algae