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Microbial Metabolism

Microbial Metabolism
Entner - Doudoroff pathway is not found in

Both (a) and (b)
anaerobic prokaryotes
eukaryotes
aerobic prokaryotes

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

H2S
H2O
S (elemental sulphur)
H2

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Microbial Metabolism
During the carboxylation phase of the Calvin cycle, CO2 combines with

ribulose 1,5 - bisphosphate
pyruvic acid
phosphoglyceraldehyde
oxaloacetic acid

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Microbial Metabolism
Which of the following catalyze liberation of orthophosphate from organic P compounds and inorganic pyrophosphate ?

Alkaline phosphates
Hydrogenase
Oxidoreductase
Protease

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

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

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Microbial Metabolism
Radioisotopes are frequently used in the study of cells. Assume a culture of E. coli is grown in a culture medium containing radioactive phosphorous. At the end of 48 hours, it is expected to find the radioactive label located in

phospholipids
RNA
enzymes
all of these

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