Which Is Not Used When Trying to Ensure That Autoclaving

question 25

Multiple Choice

Which is not used when trying to ensure that autoclaving has achieved sterility

• A)internal devices to maintain proper temperature and pressure
• B)tapes impregnated with the word "sterile" when proper temperature has been reached
• C)pasteurization by heating to 62.9 C for 30 minutes
• D)autoclaving heat-resistant endospores such as Bacillus stearothermophilus

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Definitions:

Antioxidants

Substances that can prevent or slow damage to cells caused by free radicals, unstable molecules that the body produces as a reaction to environmental and other pressures.

Concentration Gradient

The gradual change in the concentration of solutes in a solution as a function of distance through a solution.

Active Transport

Energy-requiring mechanism in which a transport protein pumps a solute across a cell membrane against the solute’s concentration gradient.

Transport Protein

Protein that moves specific ions or molecules across a cell membrane.