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4 Written questions

4 Multiple choice questions

  1. the elements or compounds produced by a chemical reaction
  2. proteins that speed up chemical reactions in the body
  3. Energy needed to start a reaction
  4. the substance acted upon by an enzyme or ferment

3 True/False questions

  1. Energy:Nutrients provide __________ and materials for cell development, growth, and repair.

          

  2. Reactants:the elements or compounds that enter into a chemical reaction

          

  3. Catalyst:(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected