Understanding Microbes

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What are bacteria?
Microscopic single-celled organisms
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Are bacterial cells simpler or more complicated than plant and animals cells?
Simpler, they don't have a 'true' nucleus. mitochondria, chloroplasts or a vacuole
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What are the features of a bacterial cell?
They may have a flagellum for movement, a cell wall to maintain shape and bacterial DNA for cell replication
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How do bacterial reproduce?
Asexually, by splitting in two, this is called binary fission
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How do viruses invade a living cell?
1. Attaches to host cell and injects its genetic material into the cell 2.It uses the cell to make components for a new virus 3.The host cells splits to release the virus
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What is yeast?
A single-celled fungus
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How does yeast reproduce?
Asexually by budding
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Yeast cells need what to reproduce ver quickly?
Lots of sugar, optimum temp and pH and no waste products
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What is aspetic technique?
The process of growing and transferring bacteria without contaminating the sample by touching or breathing on it and without any loss of microbes to the surroundings
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Card 2

Front

Are bacterial cells simpler or more complicated than plant and animals cells?

Back

Simpler, they don't have a 'true' nucleus. mitochondria, chloroplasts or a vacuole

Card 3

Front

What are the features of a bacterial cell?

Back

Preview of the front of card 3

Card 4

Front

How do bacterial reproduce?

Back

Preview of the front of card 4

Card 5

Front

How do viruses invade a living cell?

Back

Preview of the front of card 5
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