Copy table into your journal and fill it out WITHOUT LOOKING AT NOTES! 9/23/15 Date:9/23/15Topic:Proteins & EnzymesPage # ___ MacromoleculeBuilding BlocksFunctionsExamples

Today in Room 315… ADMIT SLIP: Fill out table in journal HW: Research factors affecting enzyme action CONTENT OBJ: SW explain the primary function of enzymes LANG. OBJ: SW draw and write a model demonstrating the lock and key interaction of enzymes and substrate ANNOUNCEMENTS: Lab tomorrow- bring that form!!! AGENDA: Protein Overview Enzyme Notes Enzyme Poster Biochemistry Memory Game EXIT SLIP: Write down HW & have clean room!! Date:9/23/15Topic:Proteins & EnzymesPage # ___

Homework Share-Out What are proteins?

Protein Overview (Video) m71WRBD8 m71WRBD8 Fill out notes, paste in journal

Protein Structure* All proteins have an amino group and a carboxyl group So the R group or side chain is what makes them different 20 amino acids = all proteins Basic Amino Acid: Draw this

Protein Structure* Order of amino acids determines structure and function 4 levels: primary, secondary, tertiary, quaternary Considered a protein

Polypeptide* Amino acids are joined by peptide bonds* *

Protein Ex: Enzymes* Speed up chemical reactions in the body Lowers the energy needed to convert the reactants to the products (activation energy)

Enzyme Vocab* Substrate = the substance on which an enzyme acts Products = the end results of a reaction Active site = a region on an enzyme that binds to a protein or other substance during a reaction

Lock-and-key Model Enzymes follow a lock-and-key model, where the enzyme binds only to a specific substrate* When the substrate attaches, the enzyme changes shape to create an even tighter fit, known as a “conformational change”

Write/draw this!!

Naming Enzymes Science “trick”! When you see a word that ends in “ase”- it is probably an enzyme!** Enzymes are named for the reaction they catalyze (catalyze* = “to cause or accelerate a reaction”) “ose” = sugar “ase” = enzyme!!!

Naming Enzymes Often times you can tell which reaction the enzymes catalyze… Sucrase = enzyme that breaks down sucrose Proteases = enzymes that break down proteins Lipases = enzymes that break down lipids ** “ase” = enzyme**

Personal Enzyme Poster Make a fictional enzyme that has “powers” to work on a theoretical substrate

“Adoptionase” Speeds up the rate in which animals are adopted from shelters! Enzyme = Adoptionase Substrate = Animals needing adoption Active site Empty shelter cages Animals in loving homes! Reactants Products Enzyme discovered by: Ms. Gately

Finished? 1) Hang your poster on the wall 2) Grab a partner (or group) to play your Biochemistry Memory Game!

Homework Research & write down the “Factors Affecting Enzyme Action”