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Home Microbiology Bacteria Morphology Comments

  • Question
  • In eukaryotic cells, ribosomes are


  • Options
  • A. 70S
  • B. 60S
  • C. 80S
  • D. Not specific

  • Correct Answer
  • 80S 


  • Bacteria Morphology problems


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

    • Options
    • A. monotrichous
    • B. petritrichous
    • C. amphitrichous
    • D. none of these
    • Discuss
    • 3. 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
    • 4. 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
    • 5. 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
    • 6. The location where the bacterial chromosome concentrates is called

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

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

    • Options
    • A. Streptococci
    • B. Diplococci
    • C. Tetracocci
    • D. None of these
    • Discuss
    • 9. 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
    • 10. The bacteria deficient in cell wall is

    • Options
    • A. Treponema
    • B. Mycoplasma
    • C. Staphylococcus
    • D. Klebsiella
    • Discuss


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