Bacteria, Viruses, Pathogens

Created by: isabellasancho
Created on: 15-04-22 11:18

Bacteria

1) Prokaryotic organisms
2) Single-celled
3) Microscopic
4) Don't have a nucleus
5) have a circular chromosome of DNA
6) Some can photosynthesise
7) Most bacteria feed off of other organisms (both living and dead)

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Examples of bacteria

* Lactobacillus bulgaricus (can be used to make milk go sour and turn into yoghurt) ROD SHAPED
* Pneumococcus - SPHERICAL/ROUND SHAPED

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Virus

1) NOT PROKARYOTIC OR EUKARYOTIC ORGANISMS
2) These are particles, rather than cells, and are smaller than bacteria
3) Can only reproduce inside living cells.
4) A virus is an example of a parasite- it depends on another organism to grow and reproduce.
5)

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Examples of Viruses

* Influenza virus
* HIV
* Tobacco mosaic virus - this makes the leaves of tobacco plants discoloured by stopping them from producing chloroplast

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What are pathogens?

Pathogens are organisms that cause disease e.g. some fungi, protoctists, and bacteria

Viruses are pathogens but not living organisms

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Examples of pathogens

Protoctist: Plasmodium- causes maleria

Bacterium: Pneumococcus- causes pneumonia

Viruses: Influenza virus- causes flu
HIV- causes aids

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(bacteria) ...-icus

ALWAYS ROD SHAPED

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(bacteria) ...-coccus

SPHERICAL/ROUND SHAPED

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Other cards in this set

Card 2

Front

Examples of bacteria

Back

* Lactobacillus bulgaricus (can be used to make milk go sour and turn into yoghurt) ROD SHAPED
* Pneumococcus - SPHERICAL/ROUND SHAPED

Card 3

Front

Virus

Back

Card 4

Front

Examples of Viruses

Back

Card 5

Front

What are pathogens?

Back

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Bacteria, Viruses, Pathogens