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Q: The term metabolism is best defined as

  • 1
    the number of calories it takes to keep from shivering on a cold day
  • 2
    biochemical reactions involved in building cell molecules or breaking down molecules for energy
  • 3
    the length of time it takes to digest and absorb fats
  • 4
    a measure of carbohydrate utilization, typically involving measurement of calories
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Answer : 2. "biochemical reactions involved in building cell molecules or breaking down molecules for energy"
Explanation :

Answer: B) biochemical reactions involved in building cell molecules or breaking down molecules for energy Explanation: Metabolism (from Greek: μεταβολή metabolē, "change") is the set of life-sustaining chemical transformations within the cells of organisms. The three main purposes of metabolism are the conversion of food/fuel to energy to run cellular processes, the conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some carbohydrates, and the elimination of nitrogenous wastes. In brief, the chemical processes that occur within a living organism in order to maintain life is called metabolism.

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