Physical and Chemical Agents
One drawback to the use of ultraviolet light as a sterilizing agent is its

failure to kill microbes in a closed environment
failure to kill bacteria
failure to bacterial spores
failure to kill microbes located in the center of an object

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Physical and Chemical Agents
Which of the following describes the effect of ionizing radiation on microbes?

None of these
Induces electrons and protons to jump out of the molecules of the microbe
Substantially decreases enzymatic activity, slowing microbial reproduction
Changes the 3-dimensional structure of proteins to a 2-dimen-sional form

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