science

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Across
  1. 5. - series of electron carrier proteins that shuttle high-energy electrons during ATP-generating reactions
  2. 7. - process that requires oxygen
  3. 8. - second stage of cellular respiration in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions
  4. 9. - first set of reactions in cellular respiration during which a molecule of glucose is broken into 2 molecules of pyruvic acid
  5. 10. - measure of heat energy in food; equivalent to 1000 calories
Down
  1. 1. - process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
  2. 2. - innermost compartment of the mitochondrion
  3. 3. - process by which cells release energy in the absence of oxygen
  4. 4. - process that does not require oxygen
  5. 6. - electron carrier involved in glycolysis