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Biodiversity Unit 1 > Kingdom Bacteria > Flashcards

Kingdom Bacteria Flashcards

1
Q

Obligate aerobes

A

Need oxygen

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2
Q

Obligate anaerobe

A

cannot survive WITH oxygen

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3
Q

Facultative aerobe

A

can live with or without oxygen

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4
Q

Gram positive

A

Thick and porous protein layer that stains purple

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5
Q

Gram Negative

A

Thin protein layer that stains pink

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6
Q

Round bacteria is called?

A

Coccus

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7
Q

Pill shape bacteria is called?

A

Bacillus

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8
Q

Spiral shape bacteria is called?

A

Spirillum

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9
Q

Asexual Reproduction in bacteria is called

A

Binary fission

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10
Q

Binary fission

A

splitting of parent cell into 2 daughter cells which have exact copy of DNA from parent cell

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11
Q

Sexual reproduction in bacteria is called

A

Conjugation

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12
Q

How does conjugation work with bacteria

A

Sex pili are used to exchange genetic

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13
Q

Transformation

A

occurs when a cell picks up a loose fragment of DNA from its surroundings and uses it

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14
Q

What do bacteria form around their DNA when time isn’t right?

A

Endospore

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15
Q

What are the roles of bacteria?

A

Decomposition: used in ecosystems to recycle carbon and nitrogen cycles
Pathogens: cause diseases in human, crops, and livestock.
Mutualism: between humans and bacteria. bacteria make vitamins, humans give a home
Commercial: used in environment cleanups (oil spills)

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16
Q

What is plasmid in bacteria?

A

Contains antibiotic resistant genes

17
Q

what is capsule in bacteria?

A

protects bacteria from water lose, temp change, antibiotics, and white blood cells

18
Q

what is cell wall in bacteria?

A

maintains bacteria shape

19
Q

what is pili in bacteria?

A

allows bacteria to stick to surfaces. sex pili allows cells to transfer plasmid dna

20
Q

What is flagellum in bacteria?

A

Helps bacteria move

21
Q

What is flagellum in bacteria?

A

Helps bacteria move

22
Q

Antibiotics

A

Preventing bacteria’s growth and reproduction. Stops them from building cell wall or making DNA

23
Q

Exponential growth

A

Under favourable conditions bacteria can divide every 20 min

Biodiversity Unit 1 (9 decks)

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