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

Previous problemNext problem

Struggling with Organic Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

How do saturated and unsaturated fats differ in their ability to pack together?

Saturated fats can pack tightly together due to their straight chains, while unsaturated fats have kinks that prevent tight packing.

Both saturated and unsaturated fats pack tightly together due to their similar structures.

Neither saturated nor unsaturated fats can pack tightly together due to their branched structures.

Unsaturated fats can pack tightly together due to their straight chains, while saturated fats have kinks that prevent tight packing.

Previous problemNext problem

Verified step by step guidance

Understand the structure of saturated and unsaturated fats: Saturated fats have no double bonds between carbon atoms, resulting in straight chains. Unsaturated fats contain one or more double bonds, causing kinks in their chains.

Visualize the molecular structure: Saturated fats have straight chains that allow them to align closely with each other, facilitating tight packing. In contrast, the kinks in unsaturated fats, caused by cis double bonds, prevent the molecules from aligning closely.

Consider the physical properties: The ability to pack tightly affects the melting point. Saturated fats, with their straight chains, tend to be solid at room temperature, while unsaturated fats, with kinks, are usually liquid.

Analyze the implications of packing: The tight packing of saturated fats leads to higher melting points and solid forms, whereas the loose packing of unsaturated fats results in lower melting points and liquid forms.

Conclude the comparison: Saturated fats can pack tightly due to their straight chains, while unsaturated fats cannot pack as tightly due to the kinks in their chains, affecting their physical state at room temperature.