A Certain Drug Has a Half-Life of 8 Hours

question 31

Multiple Choice

A certain drug has a half-life of 8 hours. If a person takes one after every three half-lives, and takes a dose at 10:00

• A)
• At 8:00 P.M. that evening
• B)At 8:00
• C) That evening at 10:00 P.M.
• D) The next day at 10:00

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Definitions:

Bacteria

Single-celled microorganisms that can be found in a variety of environments, some of which can cause disease while others are beneficial.

Gram Stain

A method used in microbiology for the differentiation of bacteria into two groups, Gram-positive and Gram-negative, based on the chemical and physical properties of their cell walls.

Crystal Violet

A triarylmethane dye used in Gram staining, antiseptics, and also as a textile dye.

Microorganisms

Tiny living organisms, often microscopic, such as bacteria, viruses, fungi, and protozoa, that can have various effects on other living organisms.