Interactive Activity (Chp 14 & 15) Microbiology

Tutorial: Animation: Activation of Complement View the animation below, then complete the quiz to test your knowledge of the concept. To review a previous segment click and drag the arrow beneath the circle in the play bar.

-All of the following processes can be activated by complement except antibody production -Opsonization is coating of a bacterium with antibody to make it more susceptible to phagocytosis -Complement factors C5b+C6+C7+C8 make up a membrane attack complex that results in cytolysis -Complement factors are named in the order in which they function. (false) -In the classical pathway of complement activation, complement attaches to an antigen-antibody complex. (true)

Animation: Clonal Selection View the animation below, then complete the quiz to test your knowledge of the concept. To review a previous segment click and drag the arrow beneath the circle in the play bar.

-Antibodies are produced by plasma B cells -Arrange the following in the proper order in which they occur during clonal selection. 2,1,3 2. Macrophages ingest antigen. 1. Helper T cells are activated. 3. B cells differentiate into plasma cells and memory cells. -B-cell differentiation is stimulated by interleukins. -Each B cell can react to many different types of antigens. (false)

Drag and drop the labels into their corresponding empty boxes within the figure to complete the concept map.

-Host Defenses (left)-innate immunity includes inflammation, phagocytosis and fever -Host Defenses (right) adaptive immunity passive immunity (left) artificial immunity (e.g. tetanus immune globulin) (left) natural immunity (e.g. IgA in breastmilk) (right) Adaptive immunity(right ) active immunity(left) artificial immunity via vaccines Adaptive immunity(right ) active immunity(right) natural immunity (e.g. IgG after having chickenpox)(right) Adaptive immunity(right ) active immunity(right) provides -memory (anamnestic response)(top) -antibody (humoral immunity)(middle) -activated Tc and Th cells (cell-mediated immunity)(bottom)

Order the following choices to reflect the stages of phagocytosis, from the first step to the last step.

1) Chemotaxis 2) Formation of phagosome 3) Formation of phagolysosome 4) Killing and digestion of microbe 5) Exocytosis of debris