Evaluation: Answer Key

True or False

  1. ______ People over the age of 50 are more likely to have an allergic reaction to urushiols than people under 50. False
  2. ______ T cells release cytokines which promote an allergic reaction, and also release enzymes to stop the reaction. True
  3. ______ Human-to-human transmission of urushiols is rare. True
  4. ______ You can be exposed to urushiols by handling garden tool that have previously come in contact with poison ivy. True
  5. ______ As you get older the chances of having n allergic reaction to urushiols increases. False
  6. ______ You always know immediately if you've been exposed to urushiols. False
  7. ______ Many people come in contact with urushiols by petting their dogs. True
  8. ______ Once exposed to urushiols, you cannot be infected again. False
  9. ______ It may take a month to get over Rhus dermatitis. True

Multiple choice

  1. Natural Products as defined for this topic are
    1. Products made by hand
    2. Synonymous with secondary metabolites
    3. Green
    4. Wholesome
  2. Which of the following characteristics allows urushiols to penetrate the membrane of cells?
    1. Large
    2. Small
    3. Hydrophilic
    4. Lipophilic
  3. What is the name of the molecules which urushiols bind to on the surface of the membrane to initiate an immune response?
    1. transport proteins
    2. cholesterol
    3. MHC I
    4. T cells
  4. The reaction to urushiols is referred to as a delayed type hypersensitivity reaction. Which of the following phases is not part of this reaction?
    1. Efferent phase
    2. Resolution phase
    3. Afferent phase
    4. Initiation phase

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