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Home > All Images > 2002 > August > 15 Aug 2002

Images Dated 15th August 2002

Choose from 23 pictures in our Images Dated 15th August 2002 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Chloroplasts from leaf of Coleus Featured 15 Aug 2002 Image

Chloroplasts from leaf of Coleus

False-colour transmission electron micrograph of a green chloroplast from a variegated leaf of the plant Coleus blumei. Chloroplasts are the sites of photosynthesis in plants & green algae. Chlorophyll pigments, stimulated by light, initiate a chemical reaction, which leads to the formation of sugar from carbon dioxide. Chloroplasts are usually lens-shaped & bound by two membranes; the inner one is folded into a series of stacks called grana (green, threadlike). Chlorophyll pigments are stored on the grana. The large pink region in the chloroplast is a starch grain, a product of photosynthesis. Magnification: x5000 at 6x4.5cm size

© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY