The Best Method for Preserving Bacterial Cells in Storage for Decades

question 19

Multiple Choice

The best method for preserving bacterial cells in storage for decades is

• A) lyophilization.
• B) deep freezing.
• C) refrigeration.
• D) drying under anaerobic conditions.
• E) storing them in shrink-wrap.

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Definitions:

Independent Variable

In an experiment, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Nicotine

A stimulant and addictive substance found in tobacco products that impacts the central nervous system.

Real Cigarette

Refers to traditional tobacco cigarettes, as opposed to electronic cigarettes or other smoking alternatives.

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment and is used as a benchmark to measure the effects of the treatment.