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Microbiology > 3. Prokaryotes Part 3 > Flashcards

3. Prokaryotes Part 3 Flashcards

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Biology 101 flashcards
1
Q

What are mesophiles?

A

bacteria that favor milder temperatures similar to what humans and other organisms favor

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2
Q

What are thermophiles?

A

bacteria that can survive in temperatures up to 100C

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3
Q

What are psychrophiles?

A

bacteria that can survive at very low temperatures

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4
Q

What are autotrophs?

A

bacteria that utilize CO2 as their carbon source

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5
Q

What are heterotrophs?

A

bacteria that rely on organic nutrients created by other organisms

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6
Q

What are chemotrophs?

A

bacteria that get their energy from chemicals

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7
Q

What are phototrophs?

A

bacteria that get their energy from light

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8
Q

What are the four types of bacteria based on how they get their nutrients?

A

chemoautotrophs
chemohetertrophs
photoautotrophs
photoheterotrophs

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9
Q

What is a wild-type bacteria?

A

bacteria which possesses all the characteristics normal to that particular species

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10
Q

What is a lawn in relation to growth media?

A

dense growth of bacteria seen in petri dishes

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11
Q

What is a plaque in relation to growth media?

A

clear area in the lawn

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12
Q

What is the doubling time in relation to growth media?

A

amount of time required for a population of bacteria to double its number

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13
Q

What is an auxotroph?

A

bacterium which cannot survive on minimal medium because it cant synthesize a molecule it needs to live

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14
Q

What are obligate aerobes?

A

bacteria that require oxygen

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15
Q

What are anaerobes?

A

bacteria which do not require oxygen

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16
Q

What are the three subcategories of anaerobes?

A

facultative anaerobes
tolerant anaerobes
obligate anaerobes

17
Q

What are facultative anaerobes?

A

bacteria that will use oxygen when it is around but do not need it

18
Q

What are tolerant anaerobes?

A

can grow in the presence or absence of oxygen but do not use it in their metabolism

19
Q

What are obligate anaerobes?

A

poisoned by oxygen

Microbiology (8 decks)

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