How many moles of Fe2+ an organism needs to oxidize to generate equivalent amoun

Question

How many moles of Fe2+ an organism needs to oxidize to generate equivalent amount of energy (delta G) as oxidation of 1 mole of NADH? Assume both processes use oxygen as the electron acceptor.
A. 2
B. 4
C. 5
D. 20

Question 2 of 5
1.0 Points
Which of the following is NOT a form of chemolithotrophy?
A. Ferric iron oxidation
B. Nitrification
C. Anammox
D. Hydrogen sulfide oxidation


Question 3 of 5
1.0 Points
Which part of the carbon cycle do human cells participate?
A. CO2 fixation
B. Organic carbon to CO2
C. Methanogenesis
D. Methylotrophy

Question 4 of 5
1.0 Points
Anammox is a dissimilatory reaction.
True
False


Question 5 of 5
6.0 Points
Match the organism to the type of respiration it performs
A. Ferric iron reduction
B. Nitrite oxidation
C. Hydrogen oxidation
D. Anammox
E. Fe2+ oxidation coupled to perchlorate reduction
F. Elemental sulfur reduction


1. Dechlorosoma suillum
2. Geobacter
3. Desulfuromonas
4. Nitrobacter
5. Alcaligenes
6. Planctomycetes

Explanation / Answer

1) C. 5

2)C. Anammox

3)A. CO2 fixation

In most cells, not all of the carbon compounds that participate in glycolysis and the citric acid cycle are converted to carbon dioxide by cellular respiration

4) True

NH4+ + NO2? ? N2 + 2H2O.

5)A. Ferric iron reduction 5. Alcaligenes
F.Elemental sulfur reduction 3. Desulfuromonas
C. Hydrogen oxidation 6. Planctomycetes
D. Anammox 1. Dechlorosoma suillum
E. Fe2+ oxidation coupled to perchlorate reduction 2. Geobacter
B. Nitrite oxidation 4. Nitrobacter

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