Lipids Warm up What do you already know

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Lipids • Warm up! What do you already know about lipids? Name 3 foods

Lipids • Warm up! What do you already know about lipids? Name 3 foods that are high in lipid (ex: fat) • What would you like to learn about lipids?

Lipids • Fats, oils, waxes • Functions: • Long-term energy storage • Cell membrane

Lipids • Fats, oils, waxes • Functions: • Long-term energy storage • Cell membrane • Waterproofing • Made of: • C, H, O

Lipid Building Blocks • Most lipids are composed of three fatty acids bonded to

Lipid Building Blocks • Most lipids are composed of three fatty acids bonded to a glycerol molecule • This is also known as a triglyceride…see following slides!

LIPID

LIPID

Check Point Questions! • How is the chemical structure of lipids different from carbs

Check Point Questions! • How is the chemical structure of lipids different from carbs and proteins? • What are the functions of lipids?

Types of Lipids • SATURATED Fats • Fatty acids are full of hydrogen •

Types of Lipids • SATURATED Fats • Fatty acids are full of hydrogen • No double bonds between C • Examples: butter, lard • Solid at room temperature • Considered “unhealthy” fats

 • UNSATURATED Fats • Double bonds • Not “full” of hydrogen • Liquid

• UNSATURATED Fats • Double bonds • Not “full” of hydrogen • Liquid at room temperature • Ex: olive oil, vegetable oil • Usually liquid • Considered “good” fats

 • Trans fats • Man made in a lab • Unsaturated, but solid

• Trans fats • Man made in a lab • Unsaturated, but solid at room temperature • Ex: margarine • Now known to be unhealthy

Cholesterol

Cholesterol

Check Point Questions! • What’s the difference between saturated and unsaturated fats? • What

Check Point Questions! • What’s the difference between saturated and unsaturated fats? • What are trans fats?

Venn Diagram – BIG PAPER! Compare and Contrast Carbohydrates Protein Lipids Include: Structure Function

Venn Diagram – BIG PAPER! Compare and Contrast Carbohydrates Protein Lipids Include: Structure Function Examples Make it colorful!