Microbial Metabolism
Free energy change (ΔG) of a reaction is referred as the amount of energy

liberated or taken up during reaction
liberated during reaction
none of these
taken up during reaction

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Microbial Metabolism
The mechanism of passive or facilitated diffusion require

metabolic energy
concentration of solute against an electrochemical gradient
accumulation of solute against an electrochemical gradient
accumulation or concentration of solute against an electrochemical gradient

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