Microbial Metabolism
The major route for incorporation of ammonia (NH4+) into organic compounds is via

all of these
atmospheric nitrogen fixation
oxidation of pyruvate
reduction of pyruvate or alpha-ketoglutarate by enzymes

ANSWER DOWNLOAD EXAMIANS APP

Microbial Metabolism
The mechanism of passive or facilitated diffusion require

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

ANSWER DOWNLOAD EXAMIANS APP