Communicable (Infectious) Diseases (AQA GCSE Biology): Flashcards
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Practise the cards
14 cards from this deck
What pathogens are
What pathogens are
Microorganisms that cause infectious disease
4 types of pathogens
4 types of pathogens
Viruses, bacteria, protists, fungi
3 ways pathogens spread
3 ways pathogens spread
Direct contact, water, air
How viruses reproduce
How viruses reproduce
Move into cells & use cell's biochemistry to make copies
What happens when viruses reproduce in a cell
What happens when viruses reproduce in a cell
Cell bursts, releasing virus copies
Process bacteria use to multiply quickly
Process bacteria use to multiply quickly
Binary fission
How bacteria make individuals ill
How bacteria make individuals ill
Produce toxins that damage cells
What parasitic protists do
What parasitic protists do
Use humans/animals as hosts, live on/inside causing damage
Thread-like structures in fungi
Thread-like structures in fungi
Hyphae
How fungi spread to other organisms
How fungi spread to other organisms
Produce spores which can be spread
What droplet infection is
What droplet infection is
Pathogens expelled in droplets when sneezing/coughing/talking
Ways to improve hygiene to prevent disease
Ways to improve hygiene to prevent disease
Hand washing, disinfectants, isolate raw meat, use tissues
What vaccination does
What vaccination does
Injects harmless pathogen, makes individual immune to it
How removing vectors prevents disease spread
How removing vectors prevents disease spread
Use pesticides/insecticides, remove habitat