pathogens
- Created by: Muskaan Dhaliwal
- Created on: 05-08-19 16:37
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- pathogens
- viruses
- e.g. cold, influenza, measles, HIV, tobacco mosaic virus
- DNA or RNA surrounded by a protein coat
- are not cells
- 1/100th the size of a bacterium
- bacteria (prokaryotes)
- e.g. tuberculosis (TB), salmonella, gonorrhea
- no membrane bound organelles
- (no chloroplasts, mitochondria or nucleus)
- single celled organisms
- 1/100th the size of a body cell
- make you feel ill by producing toxins that damage cells and tissues
- protists (eukaryotes)
- e.g. dysentery, sleeping sickness, malaria
- membrane bound organelles
- usually single celled
- fungi (eukaryotes)
- e.g. athletes foot, thrush, rose black spot
- membrane bound organelles, cell walls made of chitin
- single celled or multi-cellular
- others have a body made up of hyphae (thread like structures)
- these grow and penetrate human skin and the surface of plants
- can produce spores
- viruses
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