Merismopedia blue-green alga

Merismopedia blue-green alga

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Credit: MICHAEL ABBEY/SCIENCE PHOTO LIBRARY

Caption: Merismopedia algae. Light micrograph of square colonies of Merismopedia sp., a type of blue-green alga (cyanobacterium). Merismopedia forms large flat colonies, as seen here. Cyanobacteria have a different internal structure to other algae. They are prokaryotic organisms with no membrane-bound nucleus. Instead their nuclear material is dispersed throughout the cell like that of the bacteria. Likewise their chloroplasts, which they use to trap light for photosynthesis, are not restricted by a membrane but lie free in the cell. Magnification: x100 at 35mm size.

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Keywords: alga, algae, algal, bacteria, blue-green, botany, colony, cyano, cyanobacteria, light micrograph, merismopedi, merismopedia sp., nature, planar colony, plant, see blue-gree, type

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