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6. An opportunistic species is one which

  • colonises in conjunction with another species
  • colonises only when the immune system is compromised
  • colonises only when another species dies out

7. a visilous/bacilli shaped bacteria is

  • spiral
  • rod
  • circular

8. a nosocomial infection is one

  • acquired in a hospital
  • in the nasal passage
  • has developed resistance

9. the transfer of DNA from one molecule to another, within a cell is called

  • dna transfer
  • transposition
  • translation

10. bacteria in a vegetative state to help them survive stress are called

  • dormant bacteria
  • spores
  • quiescent bacteria

11. virulence factors are those which

  • contribute to symptoms
  • help the bacteria
  • help the immune system

12. a cooci shaped bacteria is

  • circular
  • spiral
  • rod

13. if a virus has positive sense dna or rna

  • It's genetic material can access host DNA and will replicate along with future hosts
  • it can take over ribosomal activity immediately as it already has an mRNA template
  • it has a template from which mRNA need to be transcribed

14. transformation is the transfer of DNA via

  • uptake by recipient cell of naked DNA that is released into the environment
  • bacteriophage
  • a pili

15. viruses of bacteria that can transfer genes are called

  • bacteriophages
  • retroviruses
  • plasmids

16. what is a fomite

  • a non-living carrier of bacteria
  • a living carrier of bacteria
  • a harmful type of bacteria
  • a helpful type of bacteria

17. bacteria repilcate via

  • mitosis
  • invading host cell
  • binary fission
  • meiosis

18. A bacteria is which kind of organism

  • prokaryotic
  • eukaryotic

19. the infectious dose is

  • the dose needed to cause infection
  • the dose that any 1 bacteria represents
  • the dose needed to inhibit colonisation

20. Give an example of a GPC

  • streptococcous pneumoniae
  • salmonella
  • diptheria
  • meningitis