Objective: SWBAT describe the importance of enzymes by examining their roles in the human body. SAT Word: dilemma (n) a difficult or perplexing situation or problem Drill: 1. What is the monomer for proteins? 2. What is the function of a protein? 3. What is an enzyme?
Key Vocabulary Enzyme Activation Energy Substrate Active Site Catalyst
Enzyme Lab
Notes Enzymes
What is an enzyme? A type of protein used to speed up chemical reactions Acts as a catalyst
What is a catalyst? An enzyme that speeds up chemical reactions without being affected Works by lowering the activation energy for the reaction
What is activation energy? The energy needed to start a chemical reaction
Why do we need enzymes? Without them, reactions would occur so slowly that organisms would not be able to sustain life.
What are some examples of enzymes? Lactase Catalase Amylase Polymerase Do you notice a pattern?
What are some examples of enzymes? Lactase Catalase Amylase Polymerase Do you notice a pattern?
What does –ase indicate? The suffix –ase indicates an enzyme
How do enzymes work? They are very specific They only work in certain conditions, with certain molecules The fit with the molecules like a lock and key
How do they work? Cont’d Enzymes bind with molecules called substrates They bind at the active site When they bind together, it alters the substrate causing a reaction Active Site
What types of things can affect the functioning of an enzyme? Temperature pH Inhibitors (things that block the active site)
Enzymes and Substrates SUBSTRATE ENZYME ENZYME AFTER REACTION SUBSTRATE AFTER REACTION
Finish the analysis questions from the Summary Let’s go back to the objective: SWBAT describe the importance of enzymes by examining their roles in the human body. ~Was the objective met? ~What did you learn today? Homework Finish the analysis questions from the Enzyme Lab