CELLULAR RESPIRATION

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Across
  1. 3. a molecule made from sugar during breaking down for energy.
  2. 5. when cells use oxygen to turn food into energy.
  3. 8. the movement of ions (like hydrogen) across a membrane to make energy (ATP).
  4. 11. a simple cell without a nucleus.
  5. 12. a helper molecule that helps enzymes do their job.
  6. 15. a tiny living thing that moves and eats with its shape-changing body.
  7. 16. the total gain left after subtracting any losses or costs.
  8. 17. producing or giving something.
Down
  1. 1. a cell that has a nucleus.
  2. 2. an enzyme that helps make (synthesize) a molecule.
  3. 4. when cells make energy without using oxygen.
  4. 6. a molecule that carries energy from broken-down food into the energy-making cycle.
  5. 7. chemicals with phosphorus that give energy to cells.
  6. 9. poisonous chemical that can stop cells from making energy.
  7. 10. tiny living things turning food or sugar into gas, alcohol, or acid.
  8. 13. process of breaking down sugar into pyruvate to make energy.
  9. 14. when a substance loses electrons, often by joining with oxygen.
  10. 18. a protein that speeds up chemical reactions in the body.