Sulfate and sulfur reduction Flashcards

1
Q

what are the sources of carbon,energy and electrons ?

A

Organic compounds

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2
Q

Who is te electron

acceptor?

A
SO42-
or sulfite(SO32-)
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3
Q

Who is te electron donor?

A

organic(lactate) or inorganic

compound(H2)

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4
Q

when lactate is used?

A

additional ATP is produced

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5
Q

How is the ATP being made?

A

lectron transport reactions generate a proton motive force and this drives ATP synthesis by ATPase

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6
Q

also ATP is also made with?

A

Substrate-level phosphorylation

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7
Q

Desulfuromonas uses what as a terminal electron acceptor ?

A

sulfur (S)

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8
Q

and uses what as an electron donors?

A

acetate,ethanol and other organic compounds

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9
Q

why does it do ATP from substrate-level phosphorylation

A

sufficient free energy to make ATP is available from sulfate reduction when an electron donor is oxidized that gives NADH or FADH

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10
Q

desulfuromonas what does it liberates?

A

S + 2H+ +2é= H2S

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11
Q

does it stink?

A

yes,rotten egg smell

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