J.W. SHULER / SCIENCE PHOTO LIBRARY J.W. SHULER / SCIENCE PHOTO LIBRARY
Pancreas cells. Fluorescent light micrograph of epithelial (lining) cells from the pancreas. DNA (deoxyribonucleic acid) in their nuclei is blue. The red strands are microtubules, proteins that make up their cytoskeletons. The cytoskeleton supports the cell and its organelles, including the mitochondria (green dots). Mitochondria are the organelles that produce energy for the cell. Magnification: x3200 at 6x9cm size.
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