Which of the following is exposed on the outer surface of a gram-negative bacterium?

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Question:
Which of the following is exposed on the outer surface of a gram-negative bacterium?

1.O-antigen of lipopolysaccharide (LPS)

2.Polysaccharide portion of lipoteichoic acid (LTA)

3.Braun lipoprotein

4.Electron transport system components

Posted Date:-2021-03-06 14:16:54

More MCQS Questions and answers

  1. A cluster of polar flagella is called
  2. A single polar flagella is known as
  3.  This about cell wall of gram-positive bacteria is true
  4.  Which of these is exposed on the outer surface of a gram-negative bacterium?
  5.  Which one of these has a Chinese letter arrangement?
  6. Bacteria having no flagella are unable to
  7. Chemically the capsule may be
  8. Chemotaxis is a phenomenon of
  9. Cyanobacteria have
  10. Cytoplasmic inclusions include
  11. Flagella in bacteria enable them to
  12. Flagella move the cell by
  13. Genetic system is located in the prokaryotes in
  14. Gram positive cells have a
  15. he protein from which hook and filaments of flagella are composed of, is
  16. In eukaryotic cells, ribosomes are
  17. In which of the following, lipo-polysaccharide is a major constituent of outer membrane of the cellwall?
  18. Which of this bacteria is resistant to penicillin as it lacks a cell wall?
  19. Microcapsules are composed of
  20. Name the component of flagellum.
  21. Peptidoglycan accounts for __________ of the dry weight of cell wall in many gram positive bacteria
  22. Peptidoglycan is also known as
  23. Peptidoglycan is found only in the bacterial
  24. Periplasm is
  25. Porins are located in
  26. Single or clusters of flagella at both poles is known as
  27. Swimming towards a chemical of bacteria is termed as
  28. Teichoic acids are typically found in
  29. The arrangement, in which flagella are distributed all round the bacterial cell, is known as
  30. The bacteria deficient in cell wall is
  31. The cell wall of
  32. The cell walls of Gram positive bacteria contain two modified sugar, viz. N- acetylgucosamine (NAG) and N- acetylmuramic acid (NAM). They are covalently linked by
  33. The cell walls of many gram positive bacteria can be easily destroyed by the enzyme known as
  34. The cocci which forms a bunch and irregular pattern are
  35. The cocci which forms a chain is
  36. The common word for bacteria which are helically curved rods is
  37. The common word for bacteria which are spherical in shape is
  38. The common word for bacteria which are straight rod in shape is
  39. The cooci which mostly occur in single or pairs are
  40. The covalent bond which links the cell walls of gram-positive bacteria containing two modified sugars – N – acetylmuramic acid (NAM) and N-acetyl glucosamine (NAG) is
  41. The last step in synthesis of peptidoglycan is
  42. The location where the bacterial chromosome concentrates is called
  43. The next to last step in peptidoglycan biosynthesis is
  44. The other name for peptidoglycan is
  45. The structure responsible for motility of bacteria is
  46. This is analogous to mesosomes of bacteria
  47. What is a cluster of polar flagella called?
  48. What is Chemotaxis?
  49. Which is most likely to be exposed on the surface of a gram-negative bacterium?
  50. Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?
  51. Which of the following bacterial genera (that produces endospore) have medical importance?
  52. Which of the following does not contain protein?
  53. Which of the following has Chinese letter arrangement?
  54. Which of the following has peptidoglycan as a major constituent of cell wall?
  55. Which of the following is analogous to mesosomes of bacteria?
  56. Which of the following is exposed on the outer surface of a gram-negative bacterium?
  57. Which of the following is not true about peptidoglycan?
  58. Which of the following is true about cell wall of gram-positive bacteria?
  59. Which of the following may be most likely to be missing from a gram-positive bacterium?
  60. Which of the following may contain fimbriae?
  61. Which of the following organism has sterols in their cytoplasmic membrane?
  62. Which of the following structure(s) is /are external to cell wall?
  63. Which of these is a cocci occurring in single or pairs?
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