Mode of nutrition of eubacteria

1.	Mode of nutrition of eubacteria
Answer» Photosynthetic autotrophs:like Cynobacteria(blue green algae)BGA. Some like Anabena and nostoc hve specialised cells called haterocysts for nitrogen fixation.Chemosynthetic autotrophs: Oxidised various inorganic substance like nitrates/nitrites,ammonia and use released energy for their ATP production .Theg heps in nutrition recycling of N,P,Fe and S.Heterotrophic bacteria: Decomposers,help in making curd, production of antibiotics,N2 fixation,cause disease like cholera typhoid tetanus and citrus canker Mode of nutrition in Eubacteria varies in a really diversifying manner and these groups of organisms can exhibit almost all kinds of modes of nutrition. Eg :- (A) Photosynthetic autotrophs like ?????? and ????????. (B) Chemosynthetic autotrophs like ???????????? and ?????? ?????? ????????. (C) Saprophytic heterotrophs like ???????????. (D) Symbiotic heterotrophs like ?????????? ???? (present in human colon) and ????????????? (present in Lichen). (E) Parasitic heterotrophs like ?????????? ????? and ????????????? ??????????. Most of familiar eubacteria are heterotrophs means they must take food from outside sources. The majority are saprophytes which consume dead material.

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