Computer model of a molecule of caffeine. Atoms are represented as spheres and are colour-coded: carbon (grey),hydrogen (white),nitrogen (blue) and oxygen (red). Caffeine is an alkaloid stimulant. It is found in tea,coffee,fizzy drinks and chocolate. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Pasieka, Alfred |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |