Part B. Crossword Puzzle

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Across
  1. 5. Gain of electrons in a reaction
  2. 7. Loss of electrons in a reaction
  3. 8. Reaction responsible for browning of cooked food
  4. 9. Electron-transfer reaction type
  5. 10. Process by which plants make food using sunlight
Down
  1. 1. Reaction that uses water to break chemical bonds
  2. 2. Series of chemical reactions that break down food
  3. 3. Proteins that speed up digestion reactions
  4. 4. Process that releases energy from glucose in cells
  5. 6. Gas released during photosynthesis