AP BIOLOGY

Detailed explanation-1: -Nicotine is a highly addictive chemical found in the tobacco plant itself and is therefore present in all tobacco products. While nicotine is what addicts and keeps people using tobacco products, it is not what makes tobacco use so deadly.

Detailed explanation-2: -Nicotine is a highly addictive chemical found in cigarettes, chewing tobacco and vaping products. Nicotine is the main reason why it is so hard to quit smoking.

Detailed explanation-3: -In many people, nicotine from cigarettes stimulates receptors in the brain to release dopamine, triggering a pleasure response. Over time, the number of nicotine receptors increases and changes your brain’s anatomy.

Detailed explanation-4: -Nicotine is an unusual alkaloid in that it has two nitrogen-containing heterocycles, pyridine and pyrrolidine. It is, of course, the tobacco component that makes smoking highly addictive, leading to the consequence that long-term smoking causes cancer.

Detailed explanation-5: -Benzene. Carbon monoxide. Tobacco-specific nitrosamines (TSNAs)