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Microbial Metabolism

Microbial Metabolism
Anoxygenic photosynthetic bacteria oxidize

ammonia
sulfide
oxgyen
water

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Microbial Metabolism
If radioactive bicarbonate was supplied to bacterial cells, which were actively synthesizing fatty acids, it is expected to find the bulk of the radioactivity in

nucleic acids
the cytoplasmic membrane
the fatty acids
cellular bicarbonate

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Microbial Metabolism
Phosphate deregulated mutants are

moderately sensitive to phosphate regulation
less sensitive to phosphate regulation
none of these
highly sensitive to phosphate regulation

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Microbial Metabolism
DAHP synthetase catalyzes the condensation of

phosphoenol pyruvate
erythrose-4-phosphate
phenylalanine
both (a) and (b)

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Microbial Metabolism
High energy transfer compounds are capable of

transferring large amounts of free energy
measuring free energy
accepting large amounts of free energy
None of these

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Microbial Metabolism
Bacteriochlorophyll differs from chlorophyll in what way?

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

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