WGU D116 PHARM UNIT 8 INFECTIOUS DISEASE
QUESTIONS WITH CORRECT ANSWERS 2026
Immune system - CORRECT ANSWER -A system (including the thymus and bone marrow and
lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by
producing the immune response
Types of Immunity - CORRECT ANSWER -Natural immunity-physical barriers, phagocytic cells,
natural killer cells
Specific aquired immunity-occur only after exposure(antigens), B&T lymohocytes, recognize
antigens and attack
Cell-mediated immunity -immune response in which targets are attacked directly by immune
system (cytolytic T cells and macrophages)
Humoral immunity-immune responses mediated my antibodies
B cells - CORRECT ANSWER -Cells manufactured in the bone marrow that create antibodies for
isolating and destroying specific invading bacteria and viruses.
Cytolytic T lymphocytes - CORRECT ANSWER -Cytolytic T cells, CD8 cells
Do not produce antibodies
Attack and kill target cells directly that have antibody on it
Helper T lymphocytes - CORRECT ANSWER -Helper T cells, CD4 cells
-Essential in antibody production by B cells
-Release factors that promote type IV hypersensitivity reactions
-participate in action of cytolytic T cells
Macrophages - CORRECT ANSWER -Located in all organs/tissues
, Required for activation of T cells
Final mediators of DTH
Phagocytize cells with antibodies attached
dendritic cells - CORRECT ANSWER -Found in lymph nodes/tissues
Same antigen presenting task as macrophages
mast cells - CORRECT ANSWER -Located in skin/tissues
Mediate immediate hypersensitivity reactions
Basophils - CORRECT ANSWER -Located in blood
Mediate immediate hypersensitivity reactions
Neutrophils - CORRECT ANSWER -Phagocytic bacteria and other foreign particles, devour cells
tagged with lgE
Eosinophils - CORRECT ANSWER -Attack and destroy particles covered by IgE, usually parasitic
worms
Antibodies (immunoglobulins) - CORRECT ANSWER -Mediate humoral immunity, recognize and
bind with specific antigens, produced by B cells
Types of antibodies - CORRECT ANSWER -· IgA: on mucosal surfaces in GI/lung and in blood,
transferred through breast milk
· IgD: B cell surfaces, serves as receptor for antigen recognition
· IgE: binds to surface of mast cells, stimulates release of histamine/heparin and
other mediators in allergies, protection from parasites
QUESTIONS WITH CORRECT ANSWERS 2026
Immune system - CORRECT ANSWER -A system (including the thymus and bone marrow and
lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by
producing the immune response
Types of Immunity - CORRECT ANSWER -Natural immunity-physical barriers, phagocytic cells,
natural killer cells
Specific aquired immunity-occur only after exposure(antigens), B&T lymohocytes, recognize
antigens and attack
Cell-mediated immunity -immune response in which targets are attacked directly by immune
system (cytolytic T cells and macrophages)
Humoral immunity-immune responses mediated my antibodies
B cells - CORRECT ANSWER -Cells manufactured in the bone marrow that create antibodies for
isolating and destroying specific invading bacteria and viruses.
Cytolytic T lymphocytes - CORRECT ANSWER -Cytolytic T cells, CD8 cells
Do not produce antibodies
Attack and kill target cells directly that have antibody on it
Helper T lymphocytes - CORRECT ANSWER -Helper T cells, CD4 cells
-Essential in antibody production by B cells
-Release factors that promote type IV hypersensitivity reactions
-participate in action of cytolytic T cells
Macrophages - CORRECT ANSWER -Located in all organs/tissues
, Required for activation of T cells
Final mediators of DTH
Phagocytize cells with antibodies attached
dendritic cells - CORRECT ANSWER -Found in lymph nodes/tissues
Same antigen presenting task as macrophages
mast cells - CORRECT ANSWER -Located in skin/tissues
Mediate immediate hypersensitivity reactions
Basophils - CORRECT ANSWER -Located in blood
Mediate immediate hypersensitivity reactions
Neutrophils - CORRECT ANSWER -Phagocytic bacteria and other foreign particles, devour cells
tagged with lgE
Eosinophils - CORRECT ANSWER -Attack and destroy particles covered by IgE, usually parasitic
worms
Antibodies (immunoglobulins) - CORRECT ANSWER -Mediate humoral immunity, recognize and
bind with specific antigens, produced by B cells
Types of antibodies - CORRECT ANSWER -· IgA: on mucosal surfaces in GI/lung and in blood,
transferred through breast milk
· IgD: B cell surfaces, serves as receptor for antigen recognition
· IgE: binds to surface of mast cells, stimulates release of histamine/heparin and
other mediators in allergies, protection from parasites
