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4 Written questions

4 Multiple choice questions

  1. (adenosine triphosphate) main energy source that cells use for most of their work
  2. The specific portion of an enzyme that attaches to the substrate by means of weak chemical bonds.
  3. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
  4. proteins that speed up chemical reactions in the body

3 True/False questions

  1. Products:the elements or compounds produced by a chemical reaction


  2. Activation energy:Nutrients provide __________ and materials for cell development, growth, and repair.


  3. Substrate:the substance acted upon by an enzyme or ferment