Microbial Metabolism
Bacteriochlorophyll differs from chlorophyll in what way?

Both (b) and (c)
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

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Microbial Metabolism
The mechanism of passive or facilitated diffusion require

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

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