Tobacco and the Human Body - Part 1

The video explores the history and global spread of tobacco, highlighting its economic impact. It delves into the chemical composition of tobacco smoke, focusing on nicotine and tars, and their extraction processes. The video explains how nicotine enters and affects the body, particularly the nervous system, and discusses the potential health risks associated with smoking.

What was the initial reaction of white men to tobacco?

• They used it as a food source.

• They ignored it completely.

• They quickly adopted its use.

• They banned it immediately.

What is the primary method used to measure nicotine in tobacco smoke?

• Infrared spectroscopy

• Gas chromatography

• Ultraviolet spectrophotometer

• Mass spectrometry

Which harmful gas is found in cigarette smoke?

• Helium

• Carbon monoxide

• Oxygen

• Nitrogen

How much nicotine is typically destroyed when a cigarette is lit?

• 10%

• 25%

• 50%

• 75%

What happens to nicotine when it enters the body?

• It is converted into sugar.

• It is distributed to all tissues.

• It is exhaled immediately.

• It is stored in the liver.

Which part of the nervous system does nicotine primarily affect?

• Somatic nervous system

• Autonomic nervous system

• Peripheral nervous system

• Central nervous system

What effect does nicotine have on blood vessels?

• It dilates them.

• It tightens them.

• It has no effect.

• It makes them disappear.