Bacteria-infection and response

• Prokaryotes are single-celled organisms without a true nucleus, but with a circular strand of DNA
• Prokaryotes do not contain mitochondria
• Prokaryotes may have a tail, known as a flagellum, to help them move
• Prokaryotes produce toxins that damage cells and tissues
• Prokaryotes are living cells
• The largest bacteria are 10 micrometres long
• Examples of prokaryotes include:

  • Lactobacillus
  • Salmonella
  • Staphylococcus