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Microbial Metabolism

Microbial Metabolism
Anoxygenic photosynthetic bacteria oxidize

ammonia
sulfide
water
oxgyen

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Microbial Metabolism
For each glucose molecule broken down, there are______________number of reduced coenzymes to be oxidized.

4
8
12
6

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Microbial Metabolism
The major route for incorporation of ammonia (NH4+) into organic compounds is via

reduction of pyruvate or alpha-ketoglutarate by enzymes
atmospheric nitrogen fixation
all of these
oxidation of pyruvate

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Microbial Metabolism
Bacteriochlorophyll differs from chlorophyll in what way?

There are chemical differences between the two chlorophyll in their side (R) groups
They have different absorption spectra
The chelated metal in bacteriochlorophyll is not Mg
Both (b) and (c)

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Microbial Metabolism
If ΔG of a chemical reaction has a negative value, the reaction

requires energy
none of these
releases energy
both (a) and (b)

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Microbial Metabolism
Incorporation of atmospheric N2to NH4+ occurs via the process of

transamination
assimilatory nitrate reduction
nitrogen fixation
deamination

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