enzymes

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Across
  1. 5. reactions used to break apart molecules
  2. 6. when an enzyme loses its shape and can’t work anymore
  3. 9. the region on an enzyme where a substrate binds
  4. 11. a measure of acidity and alkalinity that affects enzymes
  5. 13. reactions used to build proteins
  6. 16. what type of molecule most enzymes are made from
  7. 17. the energy required to start a chemical reaction.
  8. 19. the best condition for an enzyme to work at its fastest
  9. 20. model describing the exact fit between enzyme and substrate
Down
  1. 1. enzymes help speed up all the important chemical reactions needed for these to happen in living things
  2. 2. model where the enzyme slightly changes shape to fit the substrate
  3. 3. the molecule an enzyme acts on
  4. 4. hot or cold...effects the rate of enzyme reactions
  5. 7. a gas that affects the rate of enzyme function
  6. 8. when all the enzyme active sites are full, and adding more substrate doesn’t speed up the reaction
  7. 10. substances that bind to enzymes and decrease their ability to function
  8. 12. how quickly a chemical reaction happens
  9. 14. a substance that speeds up a chemical reaction
  10. 15. the amount of enzyme or substrate present, affects rate of reactions
  11. 18. what speeds up reactions without being used up?