Heterotrophic bacteria Heterotrophic cells must ingest biomass to obtain their energy and nutrition. In direct contrast, autotrophs are capable of assimilating diffuse, inorganic energy and materials, and using these to synthesize biochemicals. Green plants, for example, use sunlight and simple inorganic molecules to photosynthesize organic matter. Source for information on Heterotrophic ...
However, work done in the 1980s by Carl R. Woese of the University of Illinois on the genetic makeup of cells seems to favor a six-kingdom system that divides Monera into two kingdoms, Bacteria (Eubacteria) and Archae (Archaebacteria).
Archaea At first glance, members of domain Archaea look very much like Bacteria in morphology , but biochemical and evolutionary studies have shown that they are a unique branch of life, separate from Bacteria (Eubacteria) and Eukaryotes. This was first recognized by comparing the sequences of their ribosomal deoxyribonucleic acid (DNA) and their type of cell wall to those of other organisms ...