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5 Written questions

5 Matching questions

  1. respiratory droplets
  2. mechanical vectors
  3. commensalism
  4. hyaluronidase
  5. indirect contact
  1. a small liquid droplets expelled by sneezing or coughing
  2. b a close and permanent association between two species of organisms in which one species benefits and the other remains unharmed and unaffected
  3. c an enzyme that digests hyaluronic acid and thereby permits the penetration of pathogens through connective tissue
  4. d a living organism, or an object, that transmits disease agents on its surface
  5. e the mode of disease transmission involving nonliving objects

5 Multiple choice questions

  1. an indication of some disease or other disorder that is experienced by the patient
  2. the ability of an organism to produce a toxin
  3. a disorder caused by a microorganism that does not cause disease but that can become pathogenic or life-threatening if the host has a low level of immunity
  4. concerned with how infectious diseases are distributed in a population and the factors influencing or determining that distribution
  5. a disorder that starts with a microbe or virus that already was in or on the body as part of the microbiota

5 True/False questions

  1. vectors1. an arthropod that transmits the agents of disease from an infected host to a susceptible host
    2. a plasmid used in genetic engineering to carry a DNA segment into a bacterium or other cell

          

  2. phagocytosisa process by which foreign material or cells are taken into a white blood cell and destroyed

          

  3. biofilma complex community of microorganisms that form a protective and adhesive matrix that attaches to a surface, such as a catheter or industrial pipeline

          

  4. biological vectorsan infected arthropod, such as a mosquito or tick, that transmits disease-causing organisms between hosts

          

  5. particle transmissiona close association between two organisms in which one (the parasite) feeds on the other (the host) and may cause injury to the host