economic importance of nostoc
Some blue green algae like Lyngbia can be used as antibiotics. Occurrence 4. ... During the rainy season, the blue-green algae, notably species of Nostoc, Scytonema, Anabaena, and Aulosira, grow in large amounts. They also fix atmospheric nitrogen in crop growing field. ADVERTISEMENTS: The following points highlight the nine Importance of Cyanobacteria. Economic Importance. Reproduction 6. Introduction to Cyanophyceae 2. Fungi have both positive and negative rol es in our daily life. I. Nostoc contains protein and vitamin C. 2. Some of the algae are used as food and fodder, in agriculture, industry, medicine, purification of water, aviation and as a source of petroleum and natural gas. Economic importance . Laminaria saccharina, Pelvitia, Ascophyllum,etc. Let’s figure out the economic importance of algae together! In this article we will discuss about:- 1. So they are our. Blue green algae function as food to several aquatic animals. They are one of the early colonizers of bare and barren areas. Rhodymenia palmata is used as food for sheep in narvey. Economic importance of Nostoc. A brief account of the uses of algae is given below: (a) Algae Used as Food: The red, brown and […] Agar- agar is obtained from ----- a) Ulothrix b) Spirogyra c) Gracillaria d) Nostoc 4 Marks Questions: 1. Economic importance of algae 1 1. Characteristics of Cyanophyceae 3. 1. Like most blue-green algae, Nostoc contains two pigments, blue phycocyanin and red phycoerythrin, as well as chlorophyll, and has the ability to fix nitrogen in specialized cells called heterocysts. Diatomaceous earth is obtained from ----- a) Diatom b) Sargassum c) Ulothrix d) Spirogyra 2. Economic importance of fungi. They are nutritious and decrease the alkalinity of the soil. Economic importance of Cyanobacteria: Cyanobacteria are the source of food for aquatic animals. Cyanobacteria like Spriulina are cultivated in tanks as a protein rich food for fish and other animals. 2. Fig: Nostoc filament Nostoc colony. Spirulina is regularly collected for […] friends as well as enemy. 2. ... Porphyra has 35% protein, 45% carbohydrates,vitami ns B & C. Nostoc is used as food material in south America. Nostoc can also withstand repeated cycles of freezing and thawing and, thus, is an important component of extreme terrestrial habitats in the Arctic and Antarctic. The economic importance of algae is very diverse. The ability to fix atmospheric N 2 can provide an advantage in nitrogen‐poor environments . (3) N. commune is … Some species are toxic to aquatic animals cause poison. Nostoc species are cultivated and consumed as a foodstuff, primarily in Asia. 3. (2) Reclamation of alkaline usar soils can be done by employing some species of Nostoc. 1) Algae as food . Explain the role of algae in petroleum and gas. They provide suitable conditions for the growth of other organisms even in the most hostile environment. 2. 5. The N. flagelliforme and N commune varieties are consumed in ‘China, Japan and Java, N. commune is also consumed in the Andes. A terrestrial species has been used as a supplementary food source in Asia. Secondly, what is the economic importance of cyanobacteria? Accumulation of cyanobacteria in water source contaminates and pollutes water. Category : 11th Class (1) Many species of Nostoc fix atmospheric nitrogen and thus increases soil fertility. The economic importance of cyanobacteria are as follows : 1. Thallus Organisation 5. species are used as food for cattle. Chapter: 6 Economic Importance of Algae 2 Marks Questions: 1.
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