Introduction of photo-hetrotrophs and chemo-hetrotrophs

 3) Photo-heterotrophs:

           This bacteria uses organic compound as the source of carbon. They oxidizes  the organic compound to get energy for growing. This bacteria is also known as Photo-organotrophs. Example Non –sulphur bacteria.

 4)  Chemo-hetrotrophs:

                     This bacteria is also called  chemo-organotrophs. This also             use organic compoundas the source of carbon . They produce energy from oxidation –reduction of organic compound which is used for growth of bacteria. Example E. coli