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

Which of the following characteristics do all lipids have in common?

They are composed of glycerol and fatty acids.

They are all solid at room temperature.

They contain nitrogen.

They are insoluble in water.

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Verified step by step guidance

Understand the definition of lipids: Lipids are a diverse group of organic compounds that are insoluble in water but soluble in organic solvents. They include fats, oils, waxes, phospholipids, and steroids.

Identify the common characteristic of lipids: The key feature that all lipids share is their hydrophobic nature, meaning they do not dissolve in water. This is due to their long hydrocarbon chains or rings, which are nonpolar.

Evaluate the given options: Analyze each option to determine if it applies universally to all lipids. For example, not all lipids are composed of glycerol and fatty acids, as steroids do not have these components.

Consider the physical state of lipids: While some lipids are solid at room temperature, such as saturated fats, others like oils are liquid. Therefore, being solid at room temperature is not a universal characteristic.

Assess the presence of nitrogen: Lipids generally do not contain nitrogen. Nitrogen is more commonly found in proteins and nucleic acids, not in the basic structure of lipids.