Eukaryotic v prokaryotic

• Prokaryotic

  • less complex
  • unicellular organisms
  • extremophiles (survive in extreme conditions)
  • have DNA but not contained in nucleus, few organelles but they aren’t membrane bound
• Prokaryotic

  • small
  • dna circular and free in cytoplasm . 1 chromosome with genes grouped together
  • naked DNA
  • small ribosomes
  • no endoplasmic reticulum
  • few organelles
  • cell wall made from peptideoglycan
• Eukaryotic

  • larger than prokaryotes
  • Dna is linear and held in nucleus surrounded by envelope
  • DNA attached to histone (protein)
  • large ribosomes
  • many organelles
  • cell wall made from cellulose or chitin
• Virus structure

  • acellular and non living
  • replicate by binding to host cells , injecting genetic material to cell, using host cells macheinary to replicate and burst out of the cell