BMS1026 microbiology (tutorial questions)

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1. which of the following is a characteristic of viruses

  • multiple by binary fission
  • possess either dna or rna
  • possess a plasma membrane made of protiens
  • sensitive to antibiotics
  • possess dna and rna
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2. influenza can adapt to the human host by:

  • acquiring human genes
  • human ingestion of contaminated chicken
  • non genetic adaption
  • reassortment of genome segments by an already adapted influenza A
  • acquiring bacterial genes

3. which of the following is not spread by the respiratory route of transmission

  • streptococcus pneumoniae
  • rhinovirus
  • mycobacterium tuberculosis
  • trepenema pallidum
  • influenza

4. which of the following most closely explains the scientific basis behind wine production:

  • the ratio of malic acid to sucrose needs to reach an optimum value during the grape growing season
  • the ratio of ascorbic acid to glucose needs to reach an optimum value during growing season
  • the ratio of ascorbic acid to sucrose needs to reach an optimum value during growing season
  • the ratio of malic acid to glucose needs to reach an optimum value during growing season

5. which of the following is incorrect?

  • fungi are the main decomposers of soil ecosystems
  • animal cells lack cell walls
  • the genetic material of eukaryotes is contained in membrane bound nucleus
  • bacteria are better able to survive drier environmental conditions that fungi
  • fungal cell walls contain mostly chitin

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