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Cells are cultured in a laminar flow hood chiefly to

  • A.keep the work area free of airborne contamination
  • B.supply the cultured cells with carbon dioxide gas
  • C.keep the medium at exactly the correct temperature
  • D.provide the light that the cells require in order to grow

Answer: A

A filtered stream of air moving across the work surface keeps microorganisms away from the open vessels. Temperature and gas are controlled by the incubator instead. The hood protects the culture, and in some designs the worker as well.

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