NURSING EXAM QUESTIONS
MICROBIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The third step of phagocytosis is
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Chemotaxis
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Lysosomal fusion
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Binding
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Excretion
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Engulfment
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Explanation:
Detailed explanation-1: -The process of phagocytosis involves several phases: i) detection of the particle to be ingested, ii) activation of the internalization process, iii) formation of a specialized vacuole called phagosome, and iv) maturation of the phagosome to transform it into a phagolysosome.
Detailed explanation-2: -This is followed by fusion with lysosomes, acidification of the phagosome, and degradation of the target. The most widely-studied example of phagocytosis in-volves Fcg receptors, which recognize particles coated with immunoglobulin G (IgG) (6, 7).
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