Phagocytosis quiz Flashcards
Phagocytosis quiz
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Which of these cells engulf bacteria and break them down: lymphocytes, phagocytes, T-cells, or B-cells?
Phagocytes, which include macrophages, dendritic cells, and neutrophils, are responsible for engulfing and breaking down bacteria. Which of the following statements concerning phagocytosis is true?
Phagocytosis involves immune cells engulfing and digesting invading microbes through a series of steps including chemotaxis, recognition, and exocytosis. How do macrophages ingest bacteria and/or viruses?
Macrophages ingest bacteria and viruses by engulfing them through the process of phagocytosis, forming a phagosome that fuses with lysosomes to digest the microbes. Phagocytic cells include which of the following: lymphocytes, macrophages, dendritic cells, or T-cells?
Phagocytic cells include macrophages, dendritic cells, and neutrophils. Which of the following is not a stage of phagocytosis: chemotaxis, recognition, replication, or exocytosis?
Replication is not a stage of phagocytosis. Which statement best describes phagocytosis?
Phagocytosis is the process by which immune cells engulf and digest invading microbes through a series of steps. Which of the following statements regarding phagocyte recognition of pathogens is true?
Phagocytes recognize pathogens through direct binding via mannose binding lectins or indirectly via opsonins. What is the role of chemotaxis in phagocytosis?
Chemotaxis involves the movement of phagocytes towards chemical signals at the site of infection. What happens during the engulfment stage of phagocytosis?
During engulfment, phagocytes surround and ingest the microbe, forming a phagosome. What occurs during the exocytosis stage of phagocytosis?
During exocytosis, the phagolysosome fuses with the cell membrane to release degraded microbial material.
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