1. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. Do Now: List three things you know about this molecule Is it an organic or inorganic molecule? Explain how you know Is it a carbohydrate? Explain how you know What kind of carbohydrate? Explain how you know. What is the name of the molecule? Where do you find it? What is the job?

2. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. 1.Compare the two molecules below: How are they similar? How are they different?

3. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. 1.Compare the two molecules below: How are they similar? How are they different? NameCarbohydrate Molecule Shape Ratio of C:H:O Kinds of atom-to-atom bonds Lipid Hexagon ring 1:2:less oxygen1:2:1 “E” or “Fork” shape Single & DoubleSingle

4. How do you say “fat” in… –Chinese –French –Polish –Arabic –Spanish Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated.

5. What you already know about fat? 2. Another word for “fat” in science? 3. What examples of lipids do you know? Lipids Oil, wax, cheese, meat, avocado, lard Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. wax avocado lard

6. 4. Are lipids soluble in water? 5. Which kind of molecule are lipids? How do you know? Lipids cannot dissolve in water Organic molecules Carbon is the main element They are large and complex molecules They contain chain of carbons They are made of carbon, hydrogen, and oxygen Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated.

7. 6. Which types of bonds are present in lipids? 7. How lipids are different from carbohydrates? Simple bonds and/or double bonds Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. The molecule shape is like a “E” or “fork” Ratio of C:H:O is 1:2:less oxygen Atom-to-atom bonds are single and double

8. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. Do Now: Observe the molecule below: Is it an organic or inorganic molecule? Explain Is it a carbohydrate or a lipid? Explain

9. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. Characteristics of Lipids Lipids are a large and varied group of biological molecules that are generally not soluble in water. Lipids are made mostly form carbon and hydrogen atoms. Lipid shape looks like a “E” or “Fork” The ratio of carbon, hydrogen and oxygen is 1:2:less oxygen Atom-to-atom bonds and single and double bonds. Many lipids are formed when a glycerol molecule combines with compounds called fatty acids. Functions or jobs Lipids can be used to store energy. Some lipids are important parts of biological membranes Lipids are also part of waterproof coverings.

10. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated.

11. Saturated: carbon to carbon bonds are single bonds Polyunsaturated: some carbon to carbon bonds are double bonds Unsaturated: one carbon to carbon bond is a double bonds Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated.

12. · Three categories: Saturated lipids: If each carbon atom is joined to another carbon atom by a single bond. Examples: Butter, avocado, cheese, meat, egg yolk. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated.

13. Unsaturated lipids: there is at least one carbon-carbon double bond Example: olive oil Polyunsaturated lipids: they contain more than one double bond. Examples: Cooking oils, such as corn oil, sesame oil, canola oil, and peanut oil Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated.

14. Questions: 1. Lipids are make up of the following elements: 2. Example of lipids are 3. The major function of lipids: Other functions are 4. What are the subunits of a lipid? 5. Lipids are classifying in these groups: Carbon, hydrogen and few oxygen Fats, oil and waxes Lipids can be used to store energy Important parts of biological membranes Parts of waterproof coverings. Saturated, unsaturated, polyunsaturated Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. Fatty acids and glycerol 6. Examples of saturated fats: 7. Examples of unsaturated fats: Butter, avocado, cheese, meat, egg yolk, lard Olive oil, cooking oils

15. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. Unsaturated SaturatedPolyunsaturated Saturated

16. carbon hydrogen Fatty acid glycerol Store energy Waterproof coverings Main components in cell membranes saturated unsaturated polyunsaturated Olive oil Cooking oils: sesame oil, Canola oil, corn oil Butter, cheese, lard, avocado few oxygen Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. All single One double bond Several double bonds

17. Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated. Do Now: List three things you know about this molecule Organic or inorganic molecule? Explain how you know Carbohydrate or a lipid ? Explain how you know What kind? Explain how you know. Where do you find it? What is the job?

18. What kind of molecule? Is this molecule an organic molecule? What is the ratio of C, H, O? What kind of bonds (single, double) connect the atoms? What is the molecule shape? Where is this molecule present? List the function of this molecule Lipid, unsaturated Carbohydrate, polysaccharide or complex sugar, cellulose Olive oilWood, paper, cell wall Give strength & rigidity to plants Store energy Waterproof coverings Cell membrane component Yes Single & doubleAll single 1:2:1 1:2:less oxygen Hexagon ring“E” shape Objective: How do lipids differ from carbohydrates? New words: lipids, fat, glycerol, fatty acids, saturated, unsaturated.

19. Lipids Fat Saturated

20. Unsaturated Polyunsaturated

21. Store energy Waterproof covering Part of cell membranes

22. Cheese Meat Avocado Lard Butter Olive oil

23. Cooking oil Sesame oil Corn oil Peanut oil Corn oil