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Microbial Metabolism

Microbial Metabolism
Entner - Doudoroff pathway is not found in

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

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Microbial Metabolism
If ΔG of a chemical reaction is positive in value and keq is less than 1 then the chemical reaction will

none of these
proceed in reverse direction
not take place in any of the direction
proceeed in forward direction

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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 sulphur. At the end of 48 hours, it is expected to find the radioactive label located in

RNA
enzymes
DNA
all of these

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Microbial Metabolism
The phosphate inhibition in the clavine formation with Claviceps SD58, can be counteracted by the addition of

methionine
tryptophan
alanine
lysine

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

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

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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
red and blue
green and ultraviolet
green

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