Microbiology-Keywords

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What is the Nucleoid?
A single circulr 'chromosome' of DNA that does not contain protein
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What is the cell wall made of?
Peptidoglycan
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What is the function of the cell wall?
Provide strength and rigidity
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What is the mesosome?
The infolding of the plasma membrane and site of aerobic respiration
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What is a plasmid?
Small ring of additional DNA that carry extra characteristics
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What shape is a bacterial cell classified as a Bacillus?
Rod shaped
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What shape is a bacterial cell classified as a coccus?
Spherical
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What shape is a bacterial cell classified as a sprillum?
Spiral
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What is an obligate aerobe?
A bacteria that can only grow in the presence of oxygen
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What is an obligate anaerobe?
A bacteria that can only grow in the absence of oxygen as Oxygen or the products of its reactions may be toxic to their enzymes
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What is a facultative anaerobe?
A bacteria that grows best in the presence of oxygen but can survive in its absence
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What is a thermophile?
Bacteria that can survive in temperatures between 40°C and 93°C but their optimum tempearture is 50°C-60°C
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Where may thermophiles be used?
Biological washing powders
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What is a mesophile?
Bacteria that function best between 25°C and 40°C (most pathogenic bacteria are in this group)
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What is a psychrophile?
Bacteria that flourish at low temperatures (between -10°C and 20°C)
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Where might you find psychrophiles?
Icy waters of the arctic or antarctic oceans
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Other cards in this set

Card 2

Front

What is the cell wall made of?

Back

Peptidoglycan

Card 3

Front

What is the function of the cell wall?

Back

Preview of the front of card 3

Card 4

Front

What is the mesosome?

Back

Preview of the front of card 4

Card 5

Front

What is a plasmid?

Back

Preview of the front of card 5
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