Coloured scanning electron micrograph (SEM) of stoma on lettuce leaf (Lactuca sp.). Stomata are openings in the surface of leaves that allow gaseous exchange during photosynthesis. The size of the stomatal opening is controlled by two guard cells whose shape is dependant on internal turgidity. Magnification: x456 at 10cm wide. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lowry, Steve |
Bildgröße: | 4852 px × 3166 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |