26.1 MB (26.0 MB compressed)
3683 x 2480 pixels
31.2 x 21.1 cm ⏐ 12.3 x 8.3 in (300dpi)
DR.JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR.JEREMY BURGESS / SCIENCE PHOTO LIBRARY
False colour transmission electron micrograph of a chloroplast from a tobacco leaf, Nicotiana tabacum. Chloroplats are the sites of photosynthesis in green plants. The threadlike structures running the length of the chloroplast are grana, stacks of flattened membranes that contain the photosynthetic pigments, or chlorophylls. These pigments absorb & convert the sun's energy into the chemical energy required by the plant. The faint white patches within the chloroplast are called nucleoids, where chloroplast DNA is stored. Magnification: X`44,000 at 10x8 inch, X6300 at 35mm size.
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