50.7 MB (1.8 MB compressed)
4892 x 3624 pixels
41.4 x 30.7 cm ⏐ 16.3 x 12.1 in (300dpi)
DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY
Transmission electron micrograph of chloroplasts from the yellow portion of a variegated yellow/green coleus plant, Coleus blumei. Chloroplasts are the sites of photosynthesis, the process by which the Sun's energy is converted into the chemical energy required as food by the plant. The structure of a variegated chloroplast is slightly different from a normal green chloroplast. The granal stacks (thin black lines) which house the chlorophyll pigments are less ordered in the variegated chloroplast. The pigments themselves are also slightly different. Magnification: x5000 at 35mm size, x35,000 at 8x10-inch size.
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