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Microbial Metabolism

Microbial Metabolism
Which of the following does not produce oxygen as a product of photosynthesis?

Phytoplankton
Cyanobacteria
Purple sulfur bacteria
Oak trees

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Microbial Metabolism
Anoxygenic photosynthetic bacteria oxidize

water
ammonia
sulfide
oxgyen

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Microbial Metabolism
As the electron flow through the chains, much of their free energy is conserved in the form of ATP. This process is called

oxidative phosphorylation
dehydrogenations
electromotive potential
none of these

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

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

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

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

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Microbial Metabolism
Standard free energy change (ΔG) can be expressed as

ΔG° = R/Tlnkeq
ΔG° = -RT/lnkeq
ΔG° = RTlnkeq
ΔG° = -RTlnkeq

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