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Refrigeration preserves food chiefly because it is

  • A.bactericidal, killing most contaminating organisms
  • B.sporicidal, destroying heat-resistant spores
  • C.able to remove organisms from the food surface
  • D.bacteriostatic, slowing growth rather than killing

Answer: D

Low temperature slows metabolism and division without destroying the organisms, so spoilage is delayed rather than prevented and the population resumes growing on warming. Some pathogens, notably Listeria, still multiply slowly at refrigerator temperatures.

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