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M9) Enzymes & Ea
Enzymes increase reaction rates by lowering activation energy.
| Question | Answer |
|---|---|
| What does a chemical reaction involve? | The breaking and reforming of chemical bonds that hold atoms together. |
| Why is activation energy needed? | Because reactant molecules must absorb energy for their bonds to break. |
| What is an enzyme made of? What holds an enzyme in its conformation? | Enzymes are usually proteins. Enzymes possess tertiary and sometimes quaternary structure. Hydrogen bonding, disulfide bridges, hydrophobic interactions, and ionic interactions hold the enzymes in its conformation |
| Differentiate between catabolism and anabolism. | Both terms are subdivisions of metabolism. Catabolism involves processes that break chemical bonds, therefore, releasing energy. Anabolism involves processes that form chemical bonds, therefore, consuming energy. |