Proteomic analysis of a microbial community indicated an abundance of phycobiliproteins. Which ...

Proteomic analysis of a microbial community indicated an abundance of phycobiliproteins. Which phototrophic group is likely active and abundant in this community?

A) cyanobacteria
B) eukaryotic phototrophs
C) green bacteria
D) prochlorophytes

In contrast to chlorophylls, carotenoids function

A) as accessory pigments that enable absorption of energy from higher wavelengths.
B) primarily as photoprotection (but they also transfer some absorbed energy into reaction centers).
C) to convert reactive oxygen species into usable energy.
D) to quench toxic oxygen species.

Bacteriochlorophyll and chlorophyll contain ________ as a cofactor.

A) iron (II)
B) iron (III)
C) magnesium
D) manganese

In photosynthesis, NADH and NADPH are produced from NAD+ and NADP+ by

A) oxidation reactions.
B) reduction reactions.
C) both oxidation and reduction reactions.
D) neither oxidation nor reduction reactions.

Whether an organism is classified as a photoheterotroph or a photoautotroph depends on its

A) energy source.
B) carbon source.
C) oxygen requirements.
D) carbon and energy sources.

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Proteomic analysis of a microbial community indicated an abundance of phycobiliproteins. Which ...

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