A primary difference between cyanobacteria and purple and green phototrophic bacteria is A) electron donor for CO₂reduction. B) color. C) energy source. D) cell type. E) cell wall type.

Question

Quizplus · Accepted Answer

Cyanobacteria use water as an electron donor for CO2 reduction, releasing oxygen, while purple and green phototrophic bacteria use other compounds like hydrogen sulfide, not producing oxygen.

A Primary Difference Between Cyanobacteria and Purple and Green Phototrophic