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Problem 12b
Mark the following statements as true or false. If a statement is false, correct is to make a true statement.
The secondary immune response is mediated by plasma cells.
Problem 12c
Mark the following statements as true or false. If a statement is false, correct is to make a true statement.
Subunit vaccines consist of pathogens that are alive but unable to cause disease.
Problem 12d
Mark the following statements as true or false. If a statement is false, correct is to make a true statement.
d. Vaccinations are given to induce the production of the inflammatory response.
Problem 13
Explain how active immunity and passive immunity differ.
Problem 14
On which type(s) of cells are class I MHC molecules located?
a. Antigen-presenting cells only
b. B cells only
c. All nucleated body cells
d. Antigen-presenting cells and B cells
Problem 15
Class I MHC molecules display_____antigens and activate_____cells. Class II MHC molecules display _____antigens and activate_____cells.
Problem 16
Which of the following is not a role of TH cells?
a. Stimulation of macrophages
b. Activation of naïve TC cells
c. Stimulation of naïve B cells
d. Stimulation of clonal selection
Problem 17a
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The cells involved in organ and transplant rejection are primarily B cells.
Problem 17b
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The immune response to a viral infection involves NK cells and different kinds of lymphocytes.
Problem 17c
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Neutrophils are a critical component of the response to a parasitic infection.
Problem 17d
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Cancer cells are destroyed by NK cells, TC cells, and macrophages.
Problem 17e
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Dendritic cells may activate both TH and TC cells.
Problem 18
Type I hypersensitivity is due to release of inflammatory mediators from_____, and type IV hypersensitivity is due to the actions of_____.
a. TH cells; macrophages
b. neutrophils; TH cells
c. B cells; TC cells
d. mast cells; TH cells
Problem 19
Explain why a patient with AIDS due to HIV is at an increased risk of infection and of developing certain cancers.
Problem 20
Which of the following conditions may lead to the development of autoimmunity?
a. Self antigens not previously encountered by T cells are released into the circulation
b. Foreign antigens mimic self antigens
c. Cells may inappropriately display class II MHC molecules
d. Certain pathogens nonspecifically activate B cells
e. All of the above are correct