Unit 2: The Living Cell Movies  Videos  Study Guide

Chapter 8 How Cells Harvest Energy from Food Review
  1. Metabolism involves the transformation of energy into energy in living things, and comprises and cellular .
     
     
     
     
  2. Cellular respiration is composed of two stages: occurs in the and occurs in .
     
     
     
     
  3. In glycolysis, is broken down into two three-carbon molecules, yielding a net of molecules of ATP per glucose. Review:
     
     
     
     
  4. The pyruvates are passed into the where they are converted into , which enters the cycle (citric acid cycle).
     
     
     
     
  5. In the Krebs cycle, each pyruvate molecule yields molecule of ATP, and several electron carrier molecules of and FADH2. Review:
     
     
     
     
  6. The energy stored in and FADH2 is harvested by the electron transport (ETC) to make by chemiosmosis. Review:
     
     
     
     
  7. In conditions, glycolysis is followed by , which regenerates the electron receptor NAD+, and allows to continue generating ATP.
     
     
     
     
  8. Other macromolecules such as and can also enter cellular respiration via different pathways.
     
     
     
     
    Review:
     
     
     
     
    Exercise: 
     
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