Question

what is the role of heterocyst in cyanobacteria ​

Answer 1

Answer:

Heterocyst-forming cyanobacteria differentiate highly specialized cells to provide fixed nitrogen to the vegetative cells in a filament. In the presence of a source of combined nitrogen such as nitrate or ammonium, Anabaena PCC 7120 grows as long filaments containing hundreds of photosynthetic vegetative cells.

Explanation:

hint: Heterocysts are colorless cells found in the cyanobacteria that act as the site for nitrogen fixation. Plasmodesmata connections connect these cells with the surrounding cells and help them in getting nutrients from them.

Answer 2

Answer:

• A heterocyst is a differentiated cyanobacterial cell that carries out nitrogen fixation. The heterocysts function as the sites for nitrogen fixation under aerobic conditions. They are formed in response to a lack of fixed nitrogen (NH4 or NO3).