The Amount of Caffeine (In Milligrams) Left in an Adult

question 244

Multiple Choice

The amount of caffeine (in milligrams) left in an adult body t hours after drinking a 16 oz. coke is modeled by . What is the one-minute decay factor (rounded to the nearest thousandth?

• A) 0.016
• B) 0.999
• C) 0.930
• D) 0.957
• E) 1.011

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Definitions:

Exocytosis

Process in which an intracellular vesicle fuses with the plasma membrane so that the vesicle’s contents are released outside the cell.

Endocytosis

Process by which substances are moved into the cell from the environment; includes phagocytosis, pinocytosis, and receptor-mediated endocytosis.

Diffusion

The passive movement of particles from an area of high concentration to an area of low concentration.