As unit 2 Edexcel Biology.pdf

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  • 7/30/2019 As unit 2 Edexcel Biology.pdf

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    2of

    ProkaryoticCell

    simple

    Includesbacteriaandblue-greenalgae

    1 of 4

    Eukaryotic Cell

    Complex

    Includes all animal and plant

  • 7/30/2019 As unit 2 Edexcel Biology.pdf

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    4of

    Ultrastructureofananimalcell

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    Comparing Eukaryotic and Prokaryotic

    Eukaryotic

    Larger cells

    DNA is linear

    Nucleus present-DNA inside

    no cell wall in animals

    many organelles mitochondria present

    large ribosomes

    Prokaryotic

    Extremely small cells

    DNA is circular

    Cell wall made of polysaccharide

    no mitochondria few organelles

    smaller ribosomes