Honors/College Prep Biology: Essential Vocabulary for 2.4, 2.5, dehydration synthesis & hydrolysis Unit 1: Biological Molecules Vocabulary word Definition in your own words… How/when did we use it in class? Chemical Reaction Reactant Product Activation Energy Exothermic Reaction Endothermic Reaction Enzyme/Catalyst Substrate Active Site Dehydration Synthesis Hydolysis Application Questions: 1. How are reactants changed into products in a chemical reaction? 2. What is the role of an enzyme? 3. How does an enzyme work? 4. How are enzymes crucial to living organisms? 5. How do temperature or pH changes affect an enzyme? 6. What is dehydration synthesis and when does it occur? 7. What is hydrolysis and when does it occur? 8. How is each process listed above necessary for living organsims?