BMS1026 microbiology (tutorial questions)

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1. which of the following is an important risk factor associated with listeria monocytogenes infection?

  • causes profuse diarrhoea, allowing disease to spread rapidly through pop
  • it spores germinates as food is cooling down, and toxins are produced by the resulting vegetative cells
  • growth is not inhibited at low temps, such as those used to refrigerate food
  • it survives in poorly bbq'ed meat as core temp is not hot enough to kill it
  • pathogens become conc in filter feeding molluscs
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2. an endemic disease is one that:

  • is constantly present
  • occurs occasionally
  • spreads rapidly in a short space of time
  • a disease spread worldwide
  • none of the above

3. penicillin and other beta lactam antibiotics:

  • inhibit peptidoglycan synthesis in the bacterial cell wall
  • are extracted by industrial companies
  • cause cell membrane to leak metabolites
  • can be used in enhance oil recovery
  • selectively inhibit prokaryote ribosome activity

4. the cell reproduction in bacteria may occur by:

  • fragmentation
  • conjugation
  • binary fission
  • budding

5. chlamydia is most strongly associated with which age group

  • 55-100
  • 25-34
  • 35-44
  • 16-24
  • 45-54

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