Cigarettes That Advertise "Low Nicotine" Can Nevertheless Deliver High Nicotine

question 179

Multiple Choice

Cigarettes that advertise "low nicotine" can nevertheless deliver high nicotine, depending on

• A) how the smoker holds the cigarette.
• B) what the smoker has eaten, and how recently.
• C) the temperature and humidity of the air.
• D) the smoker's age, gender, height, and weight.

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Definitions:

Osmotic Pressure

The pressure required to prevent the flow of solvent into a solution through a semipermeable membrane, driven by differences in solute concentration.

Receptor-Mediated Endocytosis

A cellular process by which cells absorb metabolites, hormones, proteins – and in some cases viruses – by the inward budding of plasma membrane vesicles containing proteins with receptor sites specific to the molecules being absorbed.

Hypotonic

Describes a solution with a lower concentration of solutes compared to another solution, leading to the movement of water into the cell.

Isotonic

A term used to describe a solution that has the same solute concentration as another solution, resulting in no net movement of water across a semipermeable membrane.