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LAUNCH
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Homework
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10/21/16 I can I can determine how the important protein molecule known as an enzyme functions.
LAUNCH: QUIZ: CEHMISTRY OF LIFE & Ph When you are done with your quiz raise your hand, bring scantron to me, get your pH lab and finish analysis questions. Homework: • STUDY ALL NOTES. QUATERLY COMING SOON
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Finish pH lab questions
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10/24/16 I can determine how the important protein molecule known as an enzyme functions.
LAUNCH: Homework: • Review book complete chapter 1 DUE FRIDAY • Review book complete chapter 2 DUE MONDAY • Castle learning assignment DUE FRIDAY • QUIZ Friday on CHEMISTRY OF LIFE & ENZYMES.
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The Four Organic Compounds
Directions: Fill in the boxes below. Give an example of a complex sugar? ________________________ Give 4 examples of proteins: ___________________ LAUNCH The Four Organic Compounds Building Bocks 1. 2. 3. 4.
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Think about it What do you know about enzymes?
How do enzymes help food to get digested?
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Enzymes
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I. Enzymes control many vital functions:
They do not cause reactions to take place. They speed up reaction rate by decreasing activation energy (act as catalysts) Enzymes are also Known as Biological Catalyst.
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Enzyme-Substrate Complex
Enzymes are shape-specific The enzyme grabs onto the substrate (substance acted on by the enzyme) that has a special area called the active site. The active site is a specially shaped area of the enzyme that fits around the substrate.
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Enzyme-Substrate Complex
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THINK ABOUT IT The shape of an enzyme is very important, Why?
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Types of Reactions Digestion BREAKING DOWN MOLECULES. Synthesis
BUILDING UP
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ENZYME ACTION LAB
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10/26/16 I can describe factors that effect the rate of enzyme action.
LAUNCH: Copy objective & HW (Have enzyme notes out). Complete questions 1-7 on p in your review book. Homework: • Review book complete chapter 1 DUE FRIDAY • Review book complete chapter 2 DUE MONDAY • Castle learning assignment DUE FRIDAY • QUIZ Friday on CHEMISTRY OF LIFE & ENZYMES.
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LAUNCH Questions 1-7 on p. 139-140 in your review book
1. 1 2. 3. 2 4. 5. 2 6. 1 7. 4
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THINK ABOUT IT Most of your body functions at a temperature close to 98.6ͦͦ F (32ͦͦ C), what do you think would happen if the temperature of your body increased to 101? 103? 106? Etc.
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Question: How do environmental factors, such as temperature & pH effect the functioning of enzymes??
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II. Conditions Affecting Enzymes
Enzymes slow down and eventually STOP WORKING when conditions are not right. (denature-change shape) Certain temperature ranges (too extreme, enzymes will misshapen and lose function) Certain pH ranges. What pH do you think is optimum for enzymes to work in your stomach? ________________ Amount of enzyme/substrate
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III. Examples of enzymes
Saliva contains enzymes that starts the chemical digestion process in your mouth. Ex. Amylase digests ___________ Common enzyme disorder: Lactose intolerance is a condition caused by a lack of an enzyme called lactase. Without lactase the body is unable to digest lactose, a sugar found in milk products. Protease Lipase
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How do we recognize an enzyme?
*Hint… How to spot an enzyme… their name ends in –ase*
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Enzyme action lab Youtube: amoeba sisters enzymes
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ENZYME ACTION LAB Let’s complete enzyme action lab
When you finish, work on Chapter 1 & 2 in your review book
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Enzyme action lab Enzymes are proteins that speed up reactions.
Substrate is a substance that an enzyme acts on. The place where a substate attaches to an enzyme. The shape of the enzyme fits a specific substrate. Synthesis is the building up of molecules. Digestion is the breaking down of molecul
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If A is a complex carb. It would get broken down into glucose.
Sucrase Synthesis Glucose or monosccharide Proteins Temperature and pH.
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Youtube http://www.youtube.com/watch?v=XTUm-75-PL4
Enzymes, a fun introduction
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10/27/16 I can describe factors that effect the rate of enzyme action.
LAUNCH: Copy objective & HW (Have enzyme notes out). Complete questions 8-12 on p. 140 – 141 in your review book. Homework: • Review book complete chapter 1 DUE FRIDAY • Review book complete chapter 2 DUE MONDAY • Castle learning assignment DUE FRIDAY • QUIZ Friday on CHEMISTRY OF LIFE & ENZYMES.
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LAUNCH Questions 8-12 on p. 140-141 in your review book
8) 4 9) 3 10) 2
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LAUNCH Questions 8-12 on p. 140-141 in your review book
11) 2 12) Simple glucose molecules bond chemically to form complex carbohydrate molecules.
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Understanding… Where does a substrate attach to the enzyme?
What 2 types of reactions can enzymes perform? What 2 environmental factors can change the shape of (denature) an enzyme? …………………….. & …………………….
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Denature: To treat (a protein or the like) by chemical or physical means so as to alter its original state. Example: when a protein’s shape is changed due to an environmental factor.
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Recall 2 types of reactions:
________________ Builds molecules up. Ex. Micromolecule to macromolecule glucose to starch amino acids to proteins ________________ Breaks molecules down. Ex. Macromolecule to micromolecule protein to amino acids starch to glucose
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Lab Activity: Does temperature affect an enzyme reaction?
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Organic Substance Building Blocks Carbohydrates Proteins Lipids Nucleic Acids To which group of organic compounds do enzymes belong? The process of adding simple building blocks to make a complex molecules is known as a _______________reaction. The process of breaking down complex molecules into simple building blocks is known as a _______________reaction.
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Protein molecule such as an enzyme
Reactant Digestion or Synthesis Product Carbohydrate STARCH Protein molecule such as an enzyme 3 fatty acids + glycerol glucose + glucose
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