ch 6- reproduction Flashcards

1
Q

reproduction is what only for prokaryotes

A

asexual- binary fission

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1
Q

how do we get genetic variation if identical daughter cells are produced

A

mutations

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2
Q

what are the 3 sources of genetic recombination

A

conjugation , transformation and transduction

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3
Q

what is conjugation

A

2 bacteria joined by sex pilus followed by plasmid transfer

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4
Q

what is transduction

A

bacterial dna brought in by virus

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5
Q

what is transformation

A

uptake of bacterial dna from environment

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6
Q

All living things must acquire_ for ATP production, and must obtain _ for building organic
molecules.

A

Energy and carbon

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7
Q

3 sources of energy for ATP production

A

phototroph = ight
chemoorganotroph = organic molecules like sugar
chemolithotroph = inorganic molecules like ammonia (NH3) or methane (CH4

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8
Q

sources of carbon for synthesis of organic compound

A

autotroph ( use carbon to make their own organic molecules ) and heterotroph (use ready-to-use organic molecules in the environment)

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9
Q

Eukaryotes use only 2 of 6 possible methods of making ATP and obtaining carbon.
Prokaryotes do them all

A
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10
Q

Producing ATP through Cellular Respiration:

A

some prokaryotes use sugars as e- donor and oxygen as final e- acceptor

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11
Q

Producing ATP via Fermentation

A

Some eukaryotes can ferment glucose
Prokaryotes can ferment a great variety of molecules

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12
Q

Producing ATP via Photosynthesis:

A

Absorbed light E excites electrons that drive ATP synthesis by chemiosmosis.
Can be oxygenic or anoxygenic

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13
Q

Nitrogen is an often _

A

limiting resource in the enviornment

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14
Q

Nitrogen is required to make

A

proteins and nucleotides,

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15
Q

unusable form of nitrogen (to most)=

A

nitrogen gas

16
Q

) usable forms of nitrogen =

A

ammonia & nitrate

17
Q

To breake apart triple bond in nitrate must use:

A

Nitrogenase

18
Q

Nitrogenase is

A

enzyme found only in select bacterial & archaeal lineages (must be isolated from O2)