Agenda<br />-Introduction<br />-Administrative matters<br />-Getting to know you better<br />-Lesson proper<br />
Adminstrative Matters<br />Rules: <br />	P R A C T<br />Punctuality<br />Respect<br />Attitude<br />Care & Concern<br...
Lesson Objectives<br />1. Recap on Digestion<br />NEW<br />2. Enzymes <br />
Lesson Objectives<br />1. Recap on Digestion<br />2. Enzymes <br />
5<br />Digestion<br />Digestionis the breaking down of large, complex food molecules into small, simpler molecules<br />. ...
6<br /><ul><li>The cell membrane has small openings (or pores) that allow small molecules to enter, but not large molecule...
7<br />Digestion<br />Digestionis the breaking down of large, complex food molecules into small, simpler molecules<br />. ...
Examples of Enzyme and its substrate<br />amylase<br />maltase<br /><ul><li>Starch  maltose  glucose
Proteins	 amino acids
Fats	 glycerol + fatty acids</li></ul>sugars<br />protease<br />lipase<br />
Lesson Objectives<br />1. Biological Molecules<br />NEW<br />2. Enzymes <br />
Lesson Objectives<br />2a. Why do we need enzymes?<br />2b. Definition of enzymes<br />2c. Properties of enymes<br />
Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzymes<br />2c. Properties of enzymes<br />
It’s DemoTime!<br />Hydrogen peroxide experiment<br /> H2O2<br />
It’s DemoTime!<br />Do you believe that there is some reaction going on in this colorless solution?<br />Do you believe th...
Summary of Demo<br />Hydrogen peroxide experiment<br />2<br />2H202 2H2O + O2<br />
Catabolic Reaction<br />Breaking down<br />Release Energy<br />E.g. The decomposition of H2O2<br />2H202 2H2O + O2<br />v...
Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties o...
Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzymes<br />2c. How do enzymes work?<br />2d. Properties ...
Definition of Enzymes<br />Enzymes are biological catalysts that alters/speed upthe rate of a chemical reaction and remain...
Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties o...
Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties o...
Enzyme action<br />Enzymes work by loweringactivation energy<br />
Q. What is Activation Energy? <br />
Rough representation of Enzyme Action<br />Enzyme-substrate complex<br />Substrates<br />Enzyme<br />+<br />products<br />...
Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties o...
Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties o...
Properties of an enzyme<br />Speeds up chemical reaction<br />Required in small amounts<br />Highly specific in action<br ...
Properties of an enzyme<br />Speeds up chemical reaction<br />Required in small amounts<br />Highly specific in action<br ...
Properties of an enzyme<br />Speeds up chemical reaction<br />Required in small amounts<br />Highly specific in action<br ...
Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties o...
Summary <br />Recap on Digestion<br />Definition of Enzymes<br />Properties of Enzymes<br /><ul><li>Speeds up chemical rea...
Required in small amounts
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Nas Final Enzymes Lesson 1

Published on: Mar 3, 2016
Published in: Business      Technology      
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Transcripts - Nas Final Enzymes Lesson 1

  • 1. Agenda<br />-Introduction<br />-Administrative matters<br />-Getting to know you better<br />-Lesson proper<br />
  • 2. Adminstrative Matters<br />Rules: <br /> P R A C T<br />Punctuality<br />Respect<br />Attitude<br />Care & Concern<br />Think<br />Website: <br />http://carolynkhoo.pbworks.com<br />
  • 3. Lesson Objectives<br />1. Recap on Digestion<br />NEW<br />2. Enzymes <br />
  • 4. Lesson Objectives<br />1. Recap on Digestion<br />2. Enzymes <br />
  • 5. 5<br />Digestion<br />Digestionis the breaking down of large, complex food molecules into small, simpler molecules<br />. <br />Digestion is aided by complex proteins called enzymes.<br />The enzymes involved in digestion are called digestive enzymes. <br /><ul><li>Nutrients that we learnt:</li></ul>Carbohydrates<br />Proteins<br />Fats<br />
  • 6. 6<br /><ul><li>The cell membrane has small openings (or pores) that allow small molecules to enter, but not large molecules. </li></ul>Nutrients like glucose and amino acids, are small, soluble molecules. They can pass through the cell membrane.<br />Nutrients like starch, proteins and fats, are large, complex molecules. They cannot pass through the cell membrane.<br />
  • 7. 7<br />Digestion<br />Digestionis the breaking down of large, complex food molecules into small, simpler molecules<br />. <br />Digestion is aided by complex proteins called enzymes.<br />The enzymes involved in digestion are called digestive enzymes. <br />
  • 8. Examples of Enzyme and its substrate<br />amylase<br />maltase<br /><ul><li>Starch  maltose  glucose
  • 9. Proteins  amino acids
  • 10. Fats  glycerol + fatty acids</li></ul>sugars<br />protease<br />lipase<br />
  • 11. Lesson Objectives<br />1. Biological Molecules<br />NEW<br />2. Enzymes <br />
  • 12. Lesson Objectives<br />2a. Why do we need enzymes?<br />2b. Definition of enzymes<br />2c. Properties of enymes<br />
  • 13. Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzymes<br />2c. Properties of enzymes<br />
  • 14. It’s DemoTime!<br />Hydrogen peroxide experiment<br /> H2O2<br />
  • 15. It’s DemoTime!<br />Do you believe that there is some reaction going on in this colorless solution?<br />Do you believe that enzymes can speed up this reaction?<br />What do you observe when the potato cubes are added to the solution?<br />Why do you think the detergent was added?<br />Why do you think KI was added?<br />
  • 16. Summary of Demo<br />Hydrogen peroxide experiment<br />2<br />2H202 2H2O + O2<br />
  • 17. Catabolic Reaction<br />Breaking down<br />Release Energy<br />E.g. The decomposition of H2O2<br />2H202 2H2O + O2<br />vs<br />Enzymes<br />Anabolic Reaction<br />Building up<br />Use up Energy<br />E.g. Photosynthesis<br />6CO2 + 6H2OC6H12O6 + 6O2<br />Enzymes<br />
  • 18. Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties of enzymes<br />
  • 19. Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzymes<br />2c. How do enzymes work?<br />2d. Properties of enzymes<br />
  • 20. Definition of Enzymes<br />Enzymes are biological catalysts that alters/speed upthe rate of a chemical reaction and remains chemically unchanged at the end of reaction. <br />
  • 21. Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties of enzymes<br />
  • 22. Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties of enzymes<br />
  • 23. Enzyme action<br />Enzymes work by loweringactivation energy<br />
  • 24. Q. What is Activation Energy? <br />
  • 25. Rough representation of Enzyme Action<br />Enzyme-substrate complex<br />Substrates<br />Enzyme<br />+<br />products<br />+<br />Active sites <br />
  • 26. Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties of enzymes<br />
  • 27. Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties of enzymes<br />
  • 28. Properties of an enzyme<br />Speeds up chemical reaction<br />Required in small amounts<br />Highly specific in action<br />Work best at their optimum temperature and pH<br />May need co-enzymes for activity<br />
  • 29. Properties of an enzyme<br />Speeds up chemical reaction<br />Required in small amounts<br />Highly specific in action<br />Work best at their optimum temperature and pH<br />May need co-enzymes for activity<br />
  • 30. Properties of an enzyme<br />Speeds up chemical reaction<br />Required in small amounts<br />Highly specific in action<br />Work best at their optimum temperature and pH<br />May need co-enzymes for activity<br />
  • 31.
  • 32.
  • 33. Enzymes<br />2a. Why do we need enzymes?<br />2b. Definition of enzyme<br />2c. How do enzymes work?<br />2d. Properties of enzymes<br />
  • 34. Summary <br />Recap on Digestion<br />Definition of Enzymes<br />Properties of Enzymes<br /><ul><li>Speeds up chemical reaction
  • 35. Required in small amounts
  • 36. Highly specific in action
  • 37. Work best at their optimum temperature and pH
  • 38. May need co-enzymes for activity</li></li></ul><li>Questions to think about<br />What happens to the rate of enzymatic reactions at very high temperatures?Explain.<br />What are some of the properties of the enzymes that are found in the human stomach?<br />
  • 39. Q. Are enzymes used in digestion only? What other processes involve enzymes?<br />
  • 40. Homework<br />3. Read up textbook pg 77-85 to prepare for short quiz next lesson<br />4. Check out the following websites:<br />http://www.kscience.co.uk/animations/model.swf<br />http://www.dannynicholson.co.uk/enzymetale.swf<br />

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