Enzymes


 * ENZYMES Note Outline**
 * Enzymes are typically Protein molecules __//(rarely RNA)//__ that act as catalysts in the body.**
 * Enzymes typically end with the letters //ase//.**
 * **What happens to chemical bonds during chemical reactions?** Bonds are created or broken during chemical reactions.
 * **Chemical Reaction –** Process which changes one set of chemicals (reactants) into another set of chemicals (products)
 * **Reactants –** The elements or compounds that go into a chemical reaction.
 * **Products –** The compounds that are created though a chemical reaction. (compounds that come out)
 * **How do energy changes affect whether a chemical reaction will occur?** Reactions that release energy can occur spontaneously, Reactions that absorb energy need energy to __#|get started__. (Activation Energy)
 * **Activation Energy –** The energy that is needed to get a reaction started.
 * **What role do enzymes play in living things and what affects their function?** Enzymes lower activation energy, speed up a reaction or make it more efficient (better). Enzymes are affected by pH, Temperature and regulatory molecules.
 * **Catalyst –** Substance that lowers activation energy, speeds up a reaction or makes an reaction more efficient, without being used up or changed itself.
 * Enzymes – Typically Protein molecules (rarely RNA)that act as catalysts in the body.
 * **Substrate –** Substance that is catalyzed by an enzyme.
 * **Active Site -** Area on the substrate that an enzyme can attach to.
 * **Complementary -** Shapes that "fit" together.
 * **Explain the Enzyme-Substrate Complex -** The shape of the enzyme is complementary to the shape of the substrate, this allows them to fit together tightly, like a "lock and key"

Internet Resources: 1. [] 2. [] 3. []