NURSING ANM AND GNM

Detailed explanation-1: -Chemoheterotrophs, by contrast, get both their energy and carbon from other organisms. A major difference between autotrophs and heterotrophs is that the former are able to make their own food by photosynthesis whereas the latter cannot.

Detailed explanation-2: -Heterotrophic bacteria derive energy from organic compounds. They help in nutrient recycling. They decompose dead and decaying plants and animal remnants and help in biodegradation. Heterotrophic bacteria are used for making curd, antibiotics, nitrogen-fixation, etc.

Detailed explanation-3: -Bacteria can be both autotrophic and heterotrophic. Autotrophic bacteria such as Cyanobacteria and Rhodospirillum contain pigment-containing vesicles called ‘chromatophores’. These vesicles contain carotenoids and bacteriochlorophyll that help in photosynthesis.