GCSE Enzymes

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Across
  1. 3. New substances made in the chemical reaction.
  2. 5. An enzyme found in living cells that breaks down hydrogenperoxide.
  3. 7. A substance that speeds up chemical reactions.
  4. 9. The type of molecule enzymes are made of.
  5. 11. A dangerous chemical produced in living cells.
  6. 12. This happens to enzymes at extreme pH or too high temperatures.
  7. 13. An enzyme produced by salivary glands that breaks down starch.
Down
  1. 1. At higher temperatures, molecules have more ________ energy.
  2. 2. The model used to explain how an enzyme works.
  3. 3. A measure of how acidic or alkaline a solution is.
  4. 4. An alternative name for the reactants in a chemical reaction.
  5. 6. Denatured means that the shape of the ________ _____ has changed.
  6. 8. Enzymes are known as ___________ catalysts.
  7. 10. The temperature of pH that an enzyme works best at is called the ?