Describe economic importance of cyanobacteria.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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Describe economic importance of cyanobacteria.

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Step 1

Cyanobacteria are free-living photosynthetic bacteria. They obtain their energy by the oxygenic photosynthesis. They appear to have originated in a terrestrial environment or in freshwater habitat. They have internal membranes and flattened sacs known as thylakoids where the process of photosynthesis occurs.

Step 2

By releasing oxygen gas as a byproduct in photosynthesis, they are thought to have converted the early reducing atmosphere into oxidizing atmosphere. They also produce some toxins known as cyanotoxins that can be harmful for the humans and animals. Some cyanobacteria can also fix atmospheric nitrogen in anaerobic condition by the help of heterocyst cells.

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