Replication

• what do viruses use to replicate themselves?

  host cells
• what do viruses use their attachment proteins to do?

  To bind to complementary receptor proteins on the surface of host cells
• What do different viruses have?

  different attachment proteins and therefore require different receptor proteins on host cells

  • as a result, some viruses can only infect ONE TYPE of cell
  • however some viruses can infect lots of different cells
• what do cells NOT undergo and why/?

  they do not undergo cell division because they are not alive
• what do viruses do instead of cell division?

  they inject their DNA or RNA into the host cell- this hijacked cell then uses its own machinary (eg ribosomes) to replicate the viral particles