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Microbial Metabolism

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

Oak trees
Cyanobacteria
Purple sulfur bacteria
Phytoplankton

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Microbial Metabolism
The glyoxylate cycle is used by some microorganisms when___________ is the sole carbon source.

carbon dioxide
all of these
acetate
nitrate

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Microbial Metabolism
The relationship between an oxidation-reduction potential difference and the standard free energy change is (where n is the number of moles of electron transferred, F= Faraday's constant and E°= standard oxidation-reduction potential difference)

ΔG° = -nFlnE°
ΔG° = -nFE°
ΔG° = nFE°
ΔG° = nFlnE°

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Microbial Metabolism
The chlorophyll molecules used by eucaryotes and cyanobacteria absorb radiant energy in the____________portion(s) of the visible spectrum.

red
green and ultraviolet
green
red and blue

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Microbial Metabolism
The role of bacteriophyll in an oxygenic photosynthesis is to

reduce NADP directly
reduce ferridoxin directly
use light energy to energize an electron
transfer electrons to an intermediate in the sulfide oxidation pathway

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Microbial Metabolism
TCA cycle functions in

catabolic reactions
none of these
amphibolic reactions
anabolic reactions

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