Tobacco. Coloured scanning electron micrograph (SEM) of tobacco from a cigarette. At lower centre and lower right are 2 stomata (oval). These pores,which are predominantly found on the underside of leaves,are the site of gaseous exchange; carbon dioxide enters the plant and oxygen exits. Tobacco leaves are cured,fermented and aged before being packaged into cigarettes. Magnification: x550 when printed at 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 4819 px × 3626 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |