CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY
False-colour transmission electron micrograph of numerous individuals of Mycoplasma sp. (red, elongated forms at top left), infecting the surface of a cell. Many species are parasites, living on the moist mucosal membranes of humans. Some species, such as Mycoplasma pneumoniae causing a pneumonia-like infection in humans, are serious pathogens. Mycoplasmas are the smallest cellular organisms known (diameter 0. Similar to bacteria in some respects (the relationship is unclear), they differ in that they lack a true cell wall & hence display a variety of forms, these being elongated. Magnification: X 4400 at 35mm size.
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