Fig. 1.10 Co2-enriched atmosphere
1.6. BACTERIAL NUTRITION
Bacteria, like all cells, require nutrients for the maintenance of their metabolism and for cell division.
Bacterial structural components and the macromolecules for the metabolism are synthesized from the elements. The four most important elements of bacteria are carbon, hydrogen, oxygen and nitrogen.
Carbon Organisms require a source of carbon for the synthesis of numerous organic compounds that comprise protoplast.
Depending on their requirements, bacteria can be classified as 1. Autotrophs: Free-living, non-parasitic bacteria which carbondioxide as carbon source. The energy needed for their metabolism can be obtained from: