Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

32. Lipids

Intro to Lipids

Organic Chemistry

32. Lipids

Intro to Lipids

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Multiple Choice

How are phospholipids different from triglycerides?

Phospholipids contain a phosphate group, while triglycerides do not.

Phospholipids are composed of glycerol and fatty acids only, unlike triglycerides.

Phospholipids have three fatty acid chains, whereas triglycerides have two.

Phospholipids are nonpolar, while triglycerides are polar.

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Verified step by step guidance

Understand the basic structure of triglycerides: Triglycerides are composed of a glycerol backbone bonded to three fatty acid chains through ester linkages.

Learn the structure of phospholipids: Phospholipids consist of a glycerol backbone, two fatty acid chains, and a phosphate group attached to the third carbon of glycerol.

Identify the key structural difference: Phospholipids have a phosphate group replacing one of the fatty acid chains found in triglycerides, making them amphipathic with both hydrophilic (phosphate group) and hydrophobic (fatty acid chains) regions.

Clarify the polarity: Phospholipids are amphipathic due to their hydrophilic head (phosphate group) and hydrophobic tails (fatty acids), whereas triglycerides are nonpolar as they consist solely of hydrophobic fatty acid chains.

Summarize the functional implications: The presence of the phosphate group in phospholipids allows them to form bilayers in cell membranes, a function not possible for triglycerides due to their nonpolar nature.