Bio1151 Chapter 9 Cellular Respiration
  1. Living organisms require         to perform cellular work.

  2. Energy flows into most ecosystems as           and leaves as       .

  3. Electron transfer drives the transformation of energy and occurs through        reactions.

  4. Molecules such as NAD+ and FAD act as electron           in redox reactions.

  5. In cellular respiration, redox reactions occur in a series of steps called the           transport chain to form      .

  6. Cellular respiration comprises three metabolic stages:             ,         acid cycle, and            phosphorylation.

    •             occurs in the          to produce two molecules of      from the metabolism of one          molecule.

    • The           is converted to         CoA, which enters the         acid cycle.

    • During            phosphorylation, NADH and FADH2 donate            to the ETC to produce even more ATP.

    Review: Cellular Respiration
  7. In            conditions, glycolysis may be followed by               .

  8. Other organic molecules such as           and       can also enter cellular respiration via different            pathways.