Explain the steps that take place when a bacterium is opsonized via C3b:CR1 interaction between the bacterium and a resident macrophage in tissues
What will be an ideal response?
The CR1 on the macrophage can bind to C3b that is coating a bacterial surface after complement activation, and the macrophage then engulfs the bacterium through receptor-mediated endocytosis. The macrophage membrane invaginates and forms an intracellular vesicle called a phagosome. The phagosome fuses with a lysosome to form a phagolysosome, where toxic mediators and degradative enzymes are localized. The bacterium is destroyed.
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Which of the following cells plays the key role in chronic inflammation and is the main source of cytokines, arachidonic acid metabolites, and proteases?
A. neutrophils B. plasma cells C. B lymphocytes D. T lymphocytes E. macrophages
Sexual behavior is a component of wellness.
Answer the following statement true (T) or false (F)
Lisa and Abby are sisters and best friends. Both feel they can share their worries and concerns with one another. This example demonstrates
A) social integration. B) emotional detachment. C) spiritual independence. D) emotional distinction.
Twenty people were asked how many hours, on average, they watch of television per day. The results are given below.1 2 4 3 5 1 0 2 3 24 1 5 2 2 1 2 3 1 2 Create a pie chart of this information.
What will be an ideal response?