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

Steroids

Organic Chemistry

32. Lipids

Steroids

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Multiple Choice

Which of the following lipids is classified as a steroid?

Cholesterol

Phosphatidylcholine

Triglyceride

Glycolipid

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Verified step by step guidance

Understand the classification of lipids: Lipids are a diverse group of compounds that are insoluble in water but soluble in organic solvents. They are broadly classified into several categories, including triglycerides, phospholipids, glycolipids, and steroids.

Identify the structural characteristics of steroids: Steroids are a class of lipids characterized by a core structure of four fused carbon rings, typically three cyclohexane rings and one cyclopentane ring. This structure is known as the steroid nucleus.

Examine the given options: Review each lipid option provided in the problem—Cholesterol, Phosphatidylcholine, Triglyceride, and Glycolipid—and determine which one fits the structural criteria of a steroid.

Focus on Cholesterol: Cholesterol is a well-known steroid that contains the characteristic four-ring structure. It plays a crucial role in cell membrane structure and serves as a precursor for the synthesis of steroid hormones.

Conclude the classification: Based on the structural analysis, identify Cholesterol as the lipid classified as a steroid due to its distinct four-ring steroid nucleus.