Final Exam Crossword Puzzle

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Across
  1. 2. the amount of energy needed to raise the temperature of 1 gram of water 1 degree Celcius
  2. 8. a process of energy conversion that releases energy from food in the presence of oxygen
  3. 9. is any harmful material created by human activity and released into the environment
  4. 10. during this, pyruvic acid is broken down into carbon dioxide in a series of energy- extracting reactions
Down
  1. 1. releases energy from food molecules by producing ATP
  2. 3. plants convert the energy of sunlight into chemical energy in the bonds of carbohydrates
  3. 4. "in air"
  4. 5. the innermost compartment of the mitochondrion and the site of the Krebs cycle reactions
  5. 6. "without air"
  6. 7. these are basic units of all living things