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 statement best explains the difference between saturated and unsaturated fats?

Saturated fats are liquid at room temperature, while unsaturated fats are solid.

Saturated fats contain more oxygen atoms than unsaturated fats.

Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds.

Saturated fats are derived from plants, while unsaturated fats are derived from animals.

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Verified step by step guidance

Begin by understanding the basic structure of fats, which are composed of long chains of carbon atoms bonded to hydrogen atoms, known as fatty acids.

Recognize that saturated fats have carbon chains where all carbon-carbon bonds are single bonds. This means each carbon atom is 'saturated' with hydrogen atoms, leading to a straight chain structure.

Understand that unsaturated fats contain one or more double bonds between carbon atoms in their chains. These double bonds introduce kinks in the chain, affecting the physical properties of the fat.

Consider the physical state of these fats at room temperature: Saturated fats, with their straight chains, tend to pack closely together, making them solid at room temperature. Unsaturated fats, with kinks in their chains, do not pack as tightly, often resulting in a liquid state.

Conclude that the presence or absence of double bonds is the key structural difference between saturated and unsaturated fats, which influences their physical properties and biological roles.