What type of T cell helps an organism mount a rapid immune response if it is secondarily infected with the same pathogen?   A. Helper T cells B. Regulatory T cells C. Cytotoxic T cells D.  memory T cells

The first cell to initiate an adaptive immune response to a novel pathogen is _____. A. an antigen presenting cell such as a neutrophil or macrophage B. a helper T cell in the lymph nodes C. a B cell that binds a pathogen at the site of infection D. a memory cell that is activated directly by the pathogen

49. which product of inflammation is responsible for causing a fever? A- Platelet Activating factor B- Leukotrienes C. Prostaglandins D. Histamine

7. _ (blank) _ produce antibodies that are released into the bloodstream. Select one: a. B cells b. T cells c. Plasma cells d. Memory cells e. Mast cells   8. What is produced by white blood cells and act to stimulate other white blood cells? Select one: a. Immunoglobulins b. Histamines c. Interferons d. Interleukins e. Complements   9. An important step in the body's second line of defense is to identify the pathogen's _ (blank) _. Select one: a. Antibodies b. Histamines c. Antigens d. Cytokines e. Interferons

8. Helper T cells that respond to extracellular pathogens by activating B cells are called A. antigen-presenting cells. B. cytotoxic T cells. C. Th0 cells. D. Th1 cells. E. Th2 cells.

Some individuals are immune-compromised because their bodies do not make enough T-cells. What is the difference between a T-cell and any other cell type in the body?       a.   T-cells have different genomes than cells of other types       b.   T-cells have different genes than cells of other types       c.   T-cells have different proteins than cells of other types

19. The following event does not occur in the germinal centers of activated B cells? A. somatic hypermutation. B. formation of memory B cells C. RNA recombination D. plasma cell formation 20. Features of T-independent immune response include? A. occurs in people that lack a functional thymus C. give rise to memory cells. 21 Thafall E. class switching B. production of IgG and IgA D. involve immunological synapse

8. Match each term with the correct definition. Each term is only used once.                                                                                                                                                                 Myeloid progenitors                                                                                                                                                                 Lymphoid progenitors                                                                                                                                                                 Monocytes                                                                                                                                                                Macrophages                                                                                                                                                                Eosinophils…

A patient with a history of asthma and eczema has a higher than normal concentration of IgE in their blood. This predisposes them to what? A. Catalase positive organism infections B. Type I Hypersensitivies C. T cell misactivation D. Lupus