Phagocytosis (AQA A-Level Biology): Flashcards
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Practise the cards
10 cards from this deck
What is phagocytosis?
What is phagocytosis?
Process where white blood cells engulf & digest pathogens
What are phagocytes?
What are phagocytes?
Specialised white blood cells that engulf pathogens
What line of defence is phagocytosis?
What line of defence is phagocytosis?
Second line of defence
What type of immunity does phagocytosis provide?
What type of immunity does phagocytosis provide?
Rapid, non-specific immunity
How many stages in phagocytosis?
How many stages in phagocytosis?
Five stages
What is a phagosome?
What is a phagosome?
Membrane-bound vesicle containing captured pathogen
What are lysosomes?
What are lysosomes?
Organelles containing digestive enzymes (lysozymes)
What are lysozymes?
What are lysozymes?
Digestive enzymes that break down bacterial cell walls
How do lysozymes break down pathogens?
How do lysozymes break down pathogens?
Hydrolysis
How quickly do phagocytes arrive at injury sites?
How quickly do phagocytes arrive at injury sites?
Within minutes