Electron acceptor versus depth Question Flashcards

1
Q

Vertical sequence of electron acceptors in sediment

A
Aerobic respiration
Nitrate reduction
Manganese reduction
Iron Reduction
Sulphate reduction
Methanogenesis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where are SRBs present?

A

Present in all areas excluding depth where methanogenesis is dominant (Wilms, 2006)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What do aerobic microorganisms oxidise, and what is the resultant compound?

A

Oxidise substrate to CO2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What do aerobic microorganisms use as an electron acceptor?

A

Molecular oxygen-High energy yield-30-50% of substrate assimilated to biomass.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Give a definition for anaerobic activity

A

The use of other electron acceptors instead of oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Give examples of commonly used electron acceptors in anaerobic activity

A

Nitrogen, Manganese, Iron, Sulphate, Methane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Aerobic respiration

A

C6H12O6+6O2——–>6CO2+24e-+24H+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Sulphate Reduction

A

C6H12O6+3SO2-4+6H+—>6CO2+3H2S+6H2O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly