Cyanobacteria - General Characters, Reproduction and Description of Nostoc

Botany | Biology
General Characters and Reproduction in Cyanobacteria and Description of Nostoc
Class : 11

Cyanobacteria 

General Characters 

· Mostly cyaobacteria are aquatic and some are terrestrial. 

· The organisms are prokaryotic. They may be unicellular, colonial. 

· Cell wall is composed of cellulose. 

· Flagella are absent. Mesosomes are absent like bacteria.

· They contain photosynthetic pigments, so they are autotrophs. 

· No sex organs are produced and sexual reproduction is absent. 

· They reproduce asexually.

One of the important members of cyanobacteria is Nostoc 

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