Chapter 23 - Metabolism and Energy Production

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Across
  1. 4. A series of reactions in the mitochondria that transfers electrons from NADH and FADH2 to electron carriers, and finally to O2, which produces H2O. Energy changes during these transfers provide energy for ATP synthesis.
  2. 6. An iron-containing protein that transfers electrons from CoQH2 to oxygen.
  3. 9. The total yield of ATP produced by the complete oxidation of glucose (a number written out).
  4. 10. CoQ: A mobile carrier that transfers electrons from complexes I and II to complex III.
  5. 11. The enzyme that catalyzes the hydration reaction that produces malate from fumarate during the citric acid cycle.
  6. 12. The molecule formed when malate is oxidized and gains a double bond in the citric acid cycle.
  7. 13. The cycle that describes the regeneration and movement of NADH and NAD+ between the cytosol and the mitochondria via malate dehydrogenase.
  8. 15. A protein complex that links the energy released by hydrogen ions returning to the matrix with the synthesis of ATP from ADP and Pi.
  9. 16. High levels of this compound will contribute to the activation of the citric acid cycle pathway.
Down
  1. 1. A series of oxidation reactions in the mitochondria that converts acetyl CoA to CO2 and yields three NADH, one FADH2, and one GTP. It is also called the tricarboxylic acid cycle or the Krebs cycle.
  2. 2. The compound that enters the citric acid cycle and is converted to citrate by citrate synthase.
  3. 3. The conservation of energy from electron transport by pumping H+ ions into the intermembrane space to produce an H+ gradient that provides the energy to synthesize ATP.
  4. 5. High levels of this compound will contribute to the inhibition of the citric acid cycle pathway.
  5. 7. A separation of charge across a membrane caused by the pumping of hydrogen ions from the matrix and into the intermembrane space.
  6. 8. The synthesis of ATP using the energy of the hydrogen ions and electrons from the NADH and FADH2 that enter electron transport to produce a hydrogen ion gradient.
  7. 14. A symmetrical molecule produced in the citric acid cycle by the removal of CoA from Succinyl CoA.