1. Lesson #11

2. Catalyst Collect your graded work from the folder in the back. Write down today’s topic in your T.O.C. 1. Take out the quiz from last week. Write down the correct answers, and a 1-2 explanation of why they are the correct answers. (You’ll want to talk to the person next to you if you don’t know the answer yourself) Objective: Identify macromolecules, and their roles Lesson #11 Macromolecules

3. Making a goal for this week

4. A lot of you reached our goal on that quiz! 85% Why 85%? Sign the back wall

5. Congratulations to… Jarrod (100%) Jynico (100%) Jasmine Trakeya Shuvaughn Melissa Wendell Tyree

6. Hmmm: Can you get pregnant without having sex? Normally no. But… In Vitro fertilization Over 3 million! Louise Brown, first baby

7. Housekeeping TEST on Thursday Prokaryotic, eukaryotic Organelles Characteristics of life Macromolecules Tardiness check Binder check today

8. Binder Check Write down the number of points they got Sum the points on the bottom

9. What are we doing today? TODAY Catalyst: A: Macromolecules Notes B: Macromolecules WS Agenda Food discussion Explore activity Lecture Worksheet Tonight’s Homework: Finish today’s WS

10. Today’s question: What makes something a food? For example, why do we eat things like apples and chicken, and not things like aluminum foil or rocks? Why do eat?

11. One answer… Food is made of the same things, that we are Therefore, to figure out what we’re made of, we can look at what food’s made of

12. Some background…

13. Atoms Smallest units of matter Alive? Not alive

14. Molecules Bunches of atoms stuck together Alive? No TODAY’S FOCUS IS ON MOLECULES!

15. Cell 7,000,000,000,000,000 atoms Unicellular organism: made of only 1 cell Alive? YES! Most basic unit of life

16. Our activity Food is made of the same things, that we are Therefore, to figure out what we’re made of, we can look at what food’s made of SO… Let’s see what MOLECULES food is made of ACTIVITY Go around to the stations Write down: hypothesis of what molecules living things are made of

17. Debrief

19. Notes NameFunctionMonomerExample

20. The Molecules of Life All living things have four types of macromolecules. Macro-: big 1. Proteins 2. Carbohydrates 3. Lipids 4. Nucleic Acids

21. Polymers All macromolecules are polymers. Key Point #1 A polymer is a connected string of monomers.

22. Polymers

23. Macromolecule 1: Proteins Proteins are polymers of amino acids, called polypeptides. There are over 20 amino acid and just like words and sentences, putting together a different number in a different combination results in a unique protein.

26. Proteins’ Functions Proteins have tons of functions: most important are as structural support, transport, messengers, and as enzymes.

27. Conformation A protein’s function is determined by how that long chain of amino acids fold into a specific conformation, or shape.

28. Check Yourself… What is a macromolecule? What are the four macromolecules? What is a polymer? Proteins are polymers of what? What are some of the important functions of proteins? What determines how proteins work?

29. Carbohydrates Carbohydrates (AKA sugars) are polymers of monosaccharides, making a polysaccharide. Monosaccharides have a general formula of CH 2 O There are 3-carbon sugars (triose), 5-carbon sugars (pentose), and 6-carbon sugars (hexose).

30. Monosaccharides The most important monosacchardies that you need to know is gluose: C 6 H 12 O 6.

31. Disaccharides When you put two monosaccharides together, you get a disaccharide.

32. Polysaccharides As you keep adding more and more monosaccharides, you’ll end up with a polysaccharide.

33. Functions of Carbohydrates Key Point #2 Carbohydrates are for short-term energy storage for most living things Provide structural support in plants. Plant store energy as starch (think potatoes) Animals store energy as glycogen in muscle & the liver. All plant cell walls are made of cellulose.

34. Lipids Key Point #3 Lipids are NOT polymers and are all nonpolar and hydrophobic. Hydro-: water -phob-: fearing Since water is a polar molecule, they repeal nonpolar molecules, like lipids

35. Fats One type of lipids are triglycerides or fats. Fats are made of glycerol with 3 fatty acids.

36. Functions of Lipids Key Point #4 Fats and oils store energy long-term in living things. (Other lipids have other functions) Fat tissue also serve as cushioning and insulation. Phospholipids make up the cell membrane. Steroids and cholesterol can act as messengers.

38. Nucleic Acids Nucleic Acids are made of nucleotides. DNA and RNA store genetic information. Another name for nucleic acids are polynucleotides. DNA is usually in a double helix shape; RNA is a single strand.

40. Now it is time for Cold Calling

41. Throw your whiteboards in the Air… Made up of monosaccharides

42. Throw your whiteboards in the Air… Made up of nucleotides

43. Throw your whiteboards in the Air… triglycerides

44. Throw your whiteboards in the Air… Sugars

45. Throw your whiteboards in the Air… Enzymes

46. Throw your whiteboards in the Air… DNA & RNA

47. Throw your whiteboards in the Air… Fats

48. Throw your whiteboards in the Air… Cellulose is an example

49. Throw your whiteboards in the Air… Glucose is an example

50. Throw your whiteboards in the Air… Hemoglobin is an example

51. Throw your whiteboards in the Air… Function is short-term energy

52. Throw your whiteboards in the Air… Function is to store genetic information

53. Throw your whiteboards in the Air… It’s conformation determines its specific function

54. Throw your whiteboards in the Air… Makes up cell membranes

55. Throw your whiteboards in the Air… Are all nonpolar

56. Worksheet time!

59. Miller-Urey experiment Started with…

60. Miller-Urey Ended with… FORMS OF ALL FOUR MACROMOLECULES OF LIFE!

61. Wrap-Up Add up your points for today. Today’s work  Your folder Tonight’s HW: Finish class worksheet Exit Question (Complete sentences, no notes!) 1. What are the name of the four macromolecules? 2. Which macromolecule can be made into almost any shape? 3. If someone had a lot of energy stored for a while, what macromolecule would they have a lot of?