| Tobacco consumption is known to stimulate the secretion of adrenaline and nor-adrenaline. The component causing this could be |
| a) | Nicotine | b) | Tannic acid |
| c) | Curaimin | d) | Heamozoin |
| (a)Nicotine.Tobacco contains large number of chemical substances including nicotine, an alkaloid. Nicotine stimulates adrenal gland to release adrenaline and nor-adrenaline into blood circulation, both of which raise blood pressure and increases the heart rate |