Organisms that synthesize their own c-c molecules from single-carbon starting materials are named _____, while those that absorb preformed c-c compounds produced by other organisms are _____. organisms that synthesize their own c-c molecules from single-carbon starting materials are named _____, while those that absorb preformed c-c compounds produced by other organisms are _____. phototrophs; chemoorganotrophs chemoorganotrophs; heterotrophs autotrophs; chemoorganotrophs autotrophs; heterotrophs