Lipid Review

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Lipid Review

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1. What are the four examples of lipids?

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1. Saturated2. Unsaturated3. Sterol4. phospholipid

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2. What are the three functions of lipids?

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1. Energy storage2. Chemical

messengers3. Form biological

membranes

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3. What are the two components or parts of a lipid?

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1. Glycerol2. Fatty acid

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4. What is a fatty acid made from?

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Long hydrocarbon chain with a carboxyl group

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5. What is a glycerol made from?

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3 carbons and 3 OH groups

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6. How can you identify a lipid? (What is the ratio of carbon, hydrogen, and oxygen.)

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1 carbons for every 2 hydrogen and very few oxygen atoms

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7. What type of bonds are between the carbon atoms in a saturated fat?

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All single bonds

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8. At room temperature are saturated fats solids or liquids?

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solids

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9. Where do we find saturated fats? (What type of foods?)

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Meats and dairy

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10. What do you have to have between carbon atoms to form an unsaturated fat?

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At least one double bond

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11. What type of fat forms when more than one double bond is found between the carbon atoms?

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polyunsaturated

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12. What happens structurally in an unsaturated fat that causes it to be a liquid at room temperature?

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It gets a kink or a bend in the molecule, this prevents them from being packed closely together.

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13. What do sterols do in the body?

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Chemical messengers

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14. Write an example of a sterol.

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Cholesterol

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15. What do phospholipids form?

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Bilayers for membranes

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16. What does hydrophobic mean?

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water fearing

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17. What does hydrophilic mean?

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Water loving

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18. What type of molecule is shown below?

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carbohydrate

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19. What type of molecule is shown below?

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Unsaturated fat

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20. What type of molecule is shown below?

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Saturated fat