False-colour transmission electron micrograph (TEM) of various cell types comprising an islet of Langerhans,the endocrine component of the human pancreas. Beta cells secreting insulin appear green & orange; alpha cells secreting glucagon are coloured dark brown at right. The hormones insulin & glucagon are involved in carbohydrate metabolism. Insulin promotes the uptake of glucose by most cells,whilst (generally) glucagon counteracts the effects of insulin. Magnification: x17,500 at 6x7cm size,x7,800 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CNRI |
Bildgröße: | 3543 px × 2766 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |