Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

10. Lipids

Lipids

Biochemistry

10. Lipids

Lipids

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Multiple Choice

Using the lipid map above, which of the following types of lipids is NOT derived from a fatty acid precursor?

Steroids.

Waxes.

Glycerolipids.

Eicosanoids.

Sphingolipids.

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Verified step by step guidance

Understand the structure and function of fatty acids: Fatty acids are carboxylic acids with long hydrocarbon chains. They serve as precursors for various types of lipids through different biochemical pathways.

Identify lipids derived from fatty acids: Many lipids, such as waxes, glycerolipids, eicosanoids, and sphingolipids, are derived from fatty acids. These lipids are formed through processes like esterification and elongation of fatty acid chains.

Examine the structure of steroids: Steroids are a class of lipids characterized by a core structure of four fused carbon rings. Unlike other lipids, steroids are synthesized from cholesterol, which is not derived from fatty acids.

Compare the biosynthetic pathways: Fatty acid-derived lipids typically involve pathways that modify the fatty acid chains, whereas steroids are synthesized through a distinct pathway involving the conversion of cholesterol.

Conclude which lipid is not derived from fatty acids: Based on the structural and biosynthetic differences, identify steroids as the type of lipid not derived from a fatty acid precursor.