Worksheet IV LIPIDS

1. Lipids contains of carbon, oxygen, and hydrogen. Include triglycerides, phospholipids, and

waxes

2. .

3. include triglycerides, phospholipids,and waxes

4. Lipids get a bad rap, but they are very important for all living things.

5. Because lipuds contains of carbon and hydrogen, A fatty acid is recognizable by its long

hydrocarbon (made of hydrogen and carbon) chain and its carboxyl group.

6. Olive oil and peanut oil are monounsaturated (one double bond C=C). Oils from corn,

cottonseed, safflower, and sunflower are polyunsaturated (two or more double bond C=C).

7. Saturated – Fatty Acids that contain the maximum number of hydrogen atoms, and therefore

no carbon to carbon double bonds Unsaturated – Fatty Acids that contain less than the

maximum number of hydrogen atoms in one or more of its fatty acid chains because some of

its carbon atoms are double-bonded to each other.

8. ..

9. Monounsaturated fatty acids contain one carbon-to-carbon double bond, and

10. polyunsaturated fatty acids contain two or more carbon-to-carbon double bonds

11. A few oils such as palm oil and coconut oil are solid at room temperature because they

consist mostly of saturated fatty acids (single bond CC). Animal fats usually contain more

saturated fatty acids than do vegetable oils.

12. ..

13. Fatty acid molecules and glycerol.

14. hydrocarbon chain and a

15. carboxyl (-COOH) group

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18. Triacylglycerols are the major form of energy storage for animals. Animal that hibernate eat

large quantities of plants, seed, and nuts that contain high levels of fats and oils.

19. Phospholipids are very similar to triglycerides, except Phospholipids contain Glycerol, two

Fatty Acids, and one Phosphate Group. (the Phosphate Group replaces one of the fatty

acids).

20. Phospholipids contain a polar head (the phosphate group) including to hydrophilic, and a

non-polar tail (the two fatty acids) including to hydrophobic.

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22. In membrane plasma of the cell

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24. …

25. …

26. Phospholipids contain a polar head (the phosphate group) including to hydrophilic, and a

non-polar tail (the two fatty acids) including to hydrophobic.

27. ..

28. ..

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30. Phospholipids are very important molecules that compose the cell membrane of a cell

Phospholipids are very similar to triglycerides, except Phospholipids contain Glycerol, two

Fatty Acids, and one Phosphate Group. (the Phosphate Group replaces one of the fatty

acids).