Coloured transmisson electron micrograph of a chloroplast (green) sitting in the cytoplasm of a pea plant Pisum sativum. The chloroplast is the site of photosynthesis where carbohydrates are obtained from carbon dioxide using the energy from sunlight. The chloroplast is bound by a double membrane. Internally,it consists of stacks of flattened membranes called grana (threadlike) suspended in a matrix of hydrophilic proteins. The grana contain the chlorophyll pigments and are the sites of light reactions during photosynthesis. The yellow at left is part of a nucleus and the orange strip at right is the cell wall. Magnification: x1680 at 6x4.5cm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Burgess, Dr. Jeremy |
Bildgröße: | 2701 px × 3519 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |