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Microbial Metabolism

Microbial Metabolism
In an oxygenic photosynthesis, the green and the purple bacteria do not use which of the following one as an electron source?

H2O
H2
S (elemental sulphur)
H2S

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

8
6
4
12

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

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

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Microbial Metabolism
During the reduction phase of the Calvin cycle, phosphoglyceric acid is reduced to______utilizing________as the reduction source.

phosphoglyceraldehyde; NADH+H+
ribulose 1,5 - bisphosphate; NADH+H+
phosphoglyceraldehyde; NADPH+H+
pyruvic acid; NADPH+H+

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Microbial Metabolism
Which of the following groups contain(s) many unique coenzymes, such as coenzyme M and coenzyme F420?

Acetogens (acetigens; acetate-producing microbes)
Sulfate-reducing bacteria
Methanotrophs (methane-oxidizing microbes)
Methanogens (methane-producing microbes)

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Microbial Metabolism
Most of the energy in aerobic respiration of glucose is captured by

long-chain fatty acid oxidation
substrate-level phosphorylation
the enzyme formic-hydrogen lyase
electron transport of electrons from NADH

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