Bio Project

BIO PROJECT-NICOTINE AND HOW DOES IT WORK Nicotine is a hygroscopic oily liquid compatible with piss in its animal form. As a N base it forms solid water soluble salts with acids. Nicotine burns at a temperature below its boiling point and the evaporations bite at a temperature of 308K despite a low vapour pressure. Because of this virtually of the nicotine is burned when a cig bette is burned. Nicotine is one of the 4000 chemicals fix in the smoke from tobacco plant products. There are many species of tobacco plants..the tabacum species serves as the major(ip) source. Nicotine is absorbed by the skin and the mucosal membranes of the mouth and nose or by the inhalation in the lungs. As nicotine enters the automobile trunk it is quickly distribute through blood stream and crosses the blood- sensation barrier stint the brain within 10-20 seconds of inhalation. The elimination half spiritedness of nicotine is or so 2 hours. Nicotine is metabolized in the liver by cy tochrome P450 enzymes. A major metabolite is cotinine. Glucuronidation and oxidative metabolism of nicotine to cotinine are both suppress by menthol, an additive to mentholated cigarettes thus increasing the half life of nicotine in-vivo. Nicotine cigarette act as both a arousal and a sedative.

Immediately after exposure there is a kick caused in part by the drugs stimulation of the adrenal gland glands resulting in the discharge of epinephrine. The rush of adrenaline stimulates the body and causes a sudden loosen of glucose as well as an change magnitude blood pressure, respiration, heart rate. Nicotine also suppresses the insulin rig thus resulting ! in hyperglycemia. In addition nicotine indirectly stimulates the release of docamine in the brain regions that control pleasure and motivation. It is quite alike(p) to the other drugs kindred cocaine and heroin. In contrast nicotine can also use a sedative effect, depending on the train of nicotine taken. IN THE substitution NERVOUS SYSTEM- By binding to the nicotinic acetylcholine receptors,...If you involve to get a full essay, order it on our website: BestEssayCheap.com

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