Across
- 5. sum total of all chemical reactions occurring in a biological system at a
- 6. Energy (Ea): amount of energy required to start a reaction
- 7. Fit: enzyme changes shape when it binds substrate, altering shape of active
- 10. Site: place on an enzyme where substrate binds
- 12. substances formed as a result of the chemical reaction
- 15. Reaction: complex molecules made from simple molecules
- 16. Energy: energy of movement
- 17. consume free energy (+DG)
- 20. release free energy (-DG)
- 22. Complex (ES): held together by hydrogen bonds, electrical
- 29. State: reactive mode of the substrate (aka- reactant) after there has been
- 30. catalytic RNA’s that speed up reactions involving their own nucleotides
- 31. of Thermodynamics: apply to all matter and all energy transformations in the
- 32. Energy: stored energy
Down
- 1. Inhibitor: compete with natural substrate for binding sites
- 2. Energy (G): usable energy that can do work
- 3. time
- 4. Inhibitor: bind to enzyme at site other than the active site
- 8. Inhibitor: bind to enzyme-substrate complex, preventing release of products
- 9. starting substances in a chemical reaction
- 11. intermediate: unstable reactants with higher free energy
- 13. input of energy to initiate the reaction
- 14. or covalent bonds
- 18. Equilibrium: balance between forward and reverse reactions
- 19. (H): total energy
- 20. capacity to do work, or the capacity for change
- 21. Reaction: when atoms collide with enough energy to combine or change
- 23. (S): measure of disorder in a system
- 24. reactants
- 25. Free Energy: (DG° )change in free energy of a reaction under standard
- 26. changing the enzyme’s shape
- 27. Reaction: complex molecules broken down to simpler ones
- 28. Regulation: an effector binds an enzyme at a site different from the active
- 33. bonding partners