False-colour TEM of a group of human lymphocytes

False-colour TEM of a group of human lymphocytes

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Credit: CNRI/SCIENCE PHOTO LIBRARY

Caption: False-colour transmission electron micrograph (TEM) of a group of human lymphocytes, the smallest of the white blood cells. The central nucleus (brown) is slightly indented & the chromatin (genetic material - DNA) is moderately condensed; the darker coloured chromatin is seen towards the nuclear wall. The cytoplasm (yellow) is sparse, but contains a few mitochondria (small green, cigar-shaped bodies - the site of energy production & storage within the cell). The outer plasma membranes support a few microvilli (projections). Lymphocytes undergo transformations when activated in their role in immunological defence. Magnification x1650 at 35mm size.

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Keywords: anatomy, cells, false-coloured, human body, images, immune, lymphocyte, magnified image, microscopic photos, mitochondria, nucleus, subjects, white blood cell

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