Question

what is the function of blue green algae why initially they classified them as eukaryotic organisms

Answer 1

Blue Green Algae also called as Cyanobacteria are one of the most successful organisms on this planet. They are gram-negative (do not take up gram stain) and photosynthetic microorganism. They have successfully survived for over 3 billion years on our planet earth. Initially, they were classified Plantae due to their ability to photosynthesis, but later they were moved to the Monera Kingdom.



.....why;A Typical Prokaryotic Cell of Monera Kingdom.Moneransare prokaryotesi.e. they do not contain a true nucleus. Similarly, blue green algae are also prokaryotes and do not contain a true nucleus i.e. a properly defined nucleus with a membrane.Monerans have a rigid cell wall made up of peptidoglycans (polysaccharides cross-linked with small amino acids). This gives them their characteristic shape. Similarly, Blue green algae also have a rigid thick peptidoglycan cell wall.The mucilaginous sheath surrounding the cell of blue green algae and the capsule present in many Moneransposes a similar structure as both are made up of extremely fine fibrils.Like the Monerans, blue green algae also lack true sexual reproduction and reproduce asexually, either by binary fission in unicellular forms or by breaking up and regrowth of filaments in filamentous forms.Blue-green algae also fix the atmospheric nitrogen like the other members of Kingdom Monera such as bacteria and enrich the plant root environment through many nitrogenous compounds.Like many Bacteria that release the bacterial toxin, blue green algae also release toxins that are harmful to aquatic fauna.Both of them are sensitive to antibiotics.