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50.0 MB (2.1 MB compressed)
3532 x 4944 pixels
30.0 x 41.9 cm ⏐ 11.8 x 16.5 in (300dpi)
ART FOR SCIENCE / SCIENCE PHOTO LIBRARY ART FOR SCIENCE / SCIENCE PHOTO LIBRARY
Cell types. Cutaway artwork with a scale bar (upper right, in micrometres) showing the relative sizes of eukaryotic cells (those containing a nucleus) and prokaryotic cells (those lacking a nucleus). The eukaryotic cells are larger, and are a plant cell (left) and an animal cell (lower right). The main difference is the presence of a cell wall (brown) and chloroplasts (green) in the plant cell. The cell nucleus is red. The two smaller prokaryotic cells (both at upper right) are bacteria and are gram-negative (left) and gram-positive (right), with the latter having extra cell membranes. The gram-negative bacterium and the animal cell have flagella.
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