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Home Microbiology Bacteria Morphology Comments

  • Question
  • Which of the following is not true about peptidoglycan?


  • Options
  • A. It is a polymer consisting of N-acetyl glucosamine, N-acetyl muramic acid and amino acids (alanine, lysine, etc.)
  • B. It is present in prokaryotic cell wall
  • C. It occurs in the form of a bag shaped macro molecule surrounding the cytoplasm membrane
  • D. None of the above

  • Correct Answer
  • None of the above 


  • Bacteria Morphology problems


    Search Results


    • 1. Single or clusters of flagella at both poles is known as

    • Options
    • A. monotrichous
    • B. petritrichous
    • C. amphitrichous
    • D. none of these
    • Discuss
    • 2. Flagella move the cell by

    • Options
    • A. many flagella beating in a synchronous, whip-like motion
    • B. an individual flagellum beating in a whip-like motion
    • C. spinning like a propeller
    • D. attaching to nearby particles and contracting
    • Discuss
    • 3. The arrangement, in which flagella are distributed all round the bacterial cell, is known as

    • Options
    • A. lophotrichous
    • B. amphitrichous
    • C. peritrichous
    • D. monotrichous
    • Discuss
    • 4. Which of the following may be most likely to be missing from a gram-positive bacterium?

    • Options
    • A. Penicillin binding protein
    • B. Peptidoglycan
    • C. Lipopolysaccharide
    • D. Phospholipid bilayer membrane
    • Discuss
    • 5. Which of the following structure is present in prokaryotic cells?

    • Options
    • A. Mitochondria
    • B. Chloroplasts
    • C. Golgi structure
    • D. Mesosome
    • Discuss
    • 6. In eukaryotic cells, ribosomes are

    • Options
    • A. 70S
    • B. 60S
    • C. 80S
    • D. Not specific
    • Discuss
    • 7. The location where the bacterial chromosome concentrates is called

    • Options
    • A. nucleus
    • B. nuclein
    • C. nucleoid
    • D. nucleose
    • Discuss
    • 8. Cytoplasmic inclusions include

    • Options
    • A. ribosomes
    • B. mesosomes
    • C. fat globules
    • D. all of these
    • Discuss
    • 9. The cooci which mostly occur in single or pairs are

    • Options
    • A. Streptococci
    • B. Diplococci
    • C. Tetracocci
    • D. None of these
    • Discuss
    • 10. Gram positive cells have a

    • Options
    • A. second outer membrane that helps to retain the crystal violet stain
    • B. multiple layer of peptidoglycan that helps to retain the crystal violet stain
    • C. thick capsule that traps the crystal violet stain
    • D. periplasmic space that traps the crystal violet
    • Discuss


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