chemical reactions and enzymes what is a chemical reaction? changes or transforms chemicals into...
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![Page 1: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/1.jpg)
Chemical Reactions and Chemical Reactions and EnzymesEnzymes
![Page 2: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/2.jpg)
What is a chemical reaction?What is a chemical reaction?
• Changes or transforms chemicals into other chemicals
• Ex: Iron + Oxygen Iron Oxide (rust)
• What is the product?
• What are the reactants?
![Page 3: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/3.jpg)
Energy Is RequiredEnergy Is Required
• Energy can be either given off or absorbed for a chemical reaction to occur
• Identify the type of reaction as either endothermic or exothermic by the graphs to the right:
![Page 4: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/4.jpg)
Activation EnergyActivation Energy
• Energy needed to start a reaction
• Identify the activation energy supplied for the following chemical reactions
1) Building a Fire
2) Turning on a Light
3) Starting a Car
![Page 5: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/5.jpg)
CatalystCatalyst
• Any substance that lowers the activation energy needed to start a reaction.
![Page 6: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/6.jpg)
Enzymes Baby!!!!!!Enzymes Baby!!!!!!
• Describe what enzymes “do” using the graph below:
![Page 7: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/7.jpg)
EnzymesEnzymes
• Enzymes are proteins made by the cell to speed up the chemical reactions.
![Page 8: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/8.jpg)
Properties of EnzymesProperties of Enzymes
1. Lowers activation energy2. Speeds up a reaction3. Can be used repeatedly4. Shape specific (substrate)**If shape is altered, enzyme cannot functionAnimations
http://www.lewport.wnyric.org/jwanamaker/animations/Enzyme%20activity.html
![Page 9: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/9.jpg)
Factors That Affect Enzyme ActivityFactors That Affect Enzyme Activity
• High Temperature (boiling )
• Extreme pH – (acid/base)
• Changes enzyme shape
![Page 10: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/10.jpg)
Denaturing an EnzymeDenaturing an Enzyme
• A change in the shape of the active site on the enzyme
![Page 11: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/11.jpg)
![Page 12: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/12.jpg)
What life molecule are enzymes What life molecule are enzymes a part of???a part of???
PROTEINS!
![Page 13: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/13.jpg)
![Page 14: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/14.jpg)
• Enzymes = speed up reactions (to break down substances)
• Substrate= a molecule which is acted upon by an enzyme (the reactant)
![Page 15: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/15.jpg)
![Page 16: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/16.jpg)
![Page 17: Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen Iron Oxide (rust)](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649f305503460f94c4b684/html5/thumbnails/17.jpg)
““ase”ase”• Enzymes have an ending “ase”
• It helps you identify which one is the enzyme and which one is the substrate.