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Biology

10th -

University

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Domain Bacteria and Archaea

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20 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Which of the following statements show characteristics of Archaebacteria?


    I. The cell walls do not contain peptidoglycan.

    II. There are no membrane-enclosed organelles within their cytoplasm.

    III. Their DNA consist of histone proteins.

    IV. Their membrane lipid has unbranched hydrocarbon chain.

    I, II and III

    II, III and IV

    I, II and IV

    I, III and IV

  • 2. Multiple Choice
    20 seconds
    1 pt

    Which compound in the cell wall that causes a Gram positive bacteria stain purple in colour when it is treated with crystal violet dye?

    Cellulose

    Lipoprotein

    Peptidoglycan

    Lipopolysaccharide

  • 3. Multiple Choice
    30 seconds
    1 pt
    Image

    Cyanobacteria are

    Photoheterotrophs

    Photoautotrophs

    Chemoautotrophs

    Chemoheterotrophs

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