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

What are fats that are solid at room temperature mostly made of?

Saturated fatty acids

Polyunsaturated fatty acids

Trans fatty acids

Unsaturated fatty acids

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Verified step by step guidance

Understand the structure of fatty acids: Fatty acids are long hydrocarbon chains with a carboxylic acid group at one end. They can be saturated or unsaturated based on the presence of double bonds.

Identify the characteristics of saturated fatty acids: Saturated fatty acids have no double bonds between carbon atoms, which allows them to pack closely together, making them solid at room temperature.

Consider the role of unsaturated fatty acids: Unsaturated fatty acids contain one or more double bonds, which introduce kinks in the chain, preventing tight packing and usually resulting in a liquid state at room temperature.

Examine trans fatty acids: Trans fatty acids are a type of unsaturated fat with trans double bonds, which can make them behave more like saturated fats, often being solid at room temperature.

Conclude which type of fatty acids are mostly solid at room temperature: Given the characteristics, saturated fatty acids and trans fatty acids are typically solid at room temperature due to their ability to pack closely together.