Fighting disease (Edexcel GCSE Biology Combined Science): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Non-specific defence system function
Non-specific defence system function
Prevents pathogens from entering the body
Skin's role in defence
Skin's role in defence
Physical barrier + produces antimicrobial secretions
Skin flora
Skin flora
Good microorganisms competing with bad ones for space & nutrients
Cilia function
Cilia function
Beat to waft mucus upwards so it can be swallowed
Stomach defence mechanism
Stomach defence mechanism
Produces hydrochloric acid to kill pathogens
Phagocytosis
Phagocytosis
Engulfing and consuming pathogens, destroying them
How antibodies work
How antibodies work
Bind to antigens, make pathogens clump together
Immunity definition
Immunity definition
Faster antibody production on re-infection, no symptoms
Lysozyme
Lysozyme
Enzyme that destroys microorganisms by breaking down cell walls
Where lysozyme is secreted
Where lysozyme is secreted
Tears, saliva, and mucus