As unit 2 Edexcel Biology

notes on each one of the specification bullet points.

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Eukaryotic Cell

  • Complex
  • Includes all animal and plant cells(http://people.eku.edu/ritchisong/301images/Cell_structure.jpg)
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Prokaryotic Cell

  • simple
  • Includes bacteria and blue-green algae

(http://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Average_prokaryote_cell-_en.svg/300px-Average_prokaryote_cell-_en.svg.png)

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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
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Ultrastructure of an animal cell

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Comments

ahlan khalif-mudhir

thanks! this helps a lot :)

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