45.8 MB (3.1 MB compressed)
3485 x 4596 pixels
29.5 x 38.9 cm ⏐ 11.6 x 15.3 in (300dpi)
DR.JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR.JEREMY BURGESS / SCIENCE PHOTO LIBRARY
Transmission electron micrograph of a section through a single cell green algae, Chlamydomonas asymmetrica. The micrograph shows the arrangement of chloroplasts, dark-stained bodies, around the circumference of the cell. Chloroplasts are the sites of photosynthesis in higher plants & green algae. They contain the light sensitive chloroplhyll pigments, which in a complex reaction leads to the production of sugar from carbon dioxide. Sugar may be store in the chloroplast as starch (white). Algal chloroplasts often contain a body called a pyrenoid (dark mass at centre of starch). Its function is unknown. Magnification X18,000 (10x8 size), X 2570 (at 35mm size).
Model release not required. Property release not required.