nostoc and anabaena have specialised cell called heterocyst ?what is function?
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main function of heterocyst in anabaena and nostoc is nitrogen fixation...
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Answer:Heterocysts are specialized nitrogen-fixing cells formed during nitrogen starvation by some filamentous cyanobacteria, such as Nostoc punctiforme, Cylindrospermum stagnale, and Anabaena sphaerica. ... Nitrogenase is inactivated by oxygen, so the heterocyst must create a microanaerobic environment.
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