Phagocytosis Stages Flashcards
Q: What is the first stage of phagocytosis?
A: Detection of the pathogen - The phagocyte detects the pathogen through its Pathogen Associated Molecular Patterns (PAMPs), which are recognized by Pathogen Recognition Receptors (PRRs) on the phagocyte’s surface.
Q: What happens after the phagocyte detects the pathogen?
A: Activation of the phagocyte - The binding of PRRs to PAMPs activates the phagocyte, preparing it to engulf the pathogen.
Q: What occurs after the pathogen is engulfed by the phagocyte?
A: Formation of the phagolysosome - The phagosome fuses with a lysosome, and lysozymes are released to break down the pathogen.
Q: What is the third stage of phagocytosis?
A: Engulfment of the pathogen - The phagocyte extends its cytoplasm around the pathogen, engulfing it into a vesicle known as a phagosome.
Flashcard 5
Q: What is the final stage of phagocytosis?
A: Absorption of digestive products - The phagocyte absorbs the breakdown products of the pathogen, with any waste material being expelled via exocytosis.
