b5 3 Flashcards
How is malaria spread?
By female Anopheles mosquitoes
How does malaria affect the body?
Damages blood and liver cells
State a symptom of malaria.
Fevers, shaking
How can the spread of malaria be stopped?
Use mosquito nets; Use insecticides; Remove standing water; take antimalarial drugs
How does your skin act as a defence against pathogen entry?
Barrier;Antimicrobial secretions; Microorganism layer
How does the trachea defend the body against pathogens?
Secrete mucus to trap pathogens + Cilia move mucus up the trachea to be removed
How does the stomach defend the body against pathogens?
Hydrochloric acid destroys microorganisms in mucus/food
State the three ways in which white blood cells defend the body.
Engulf pathogens + Produce antibodies + Produce antitoxins
What are antibodies?
Proteins that bind to specific antigens on pathogens
What are antigens?
Proteins on cell surface for cell recognition