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

1. Introduction to Biochemistry

Lipids

Biochemistry

1. Introduction to Biochemistry

Lipids

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Multiple Choice

Which type of lipid is composed of fatty acid chains and a glycerol backbone?

Triglyceride

Phospholipid

Steroid

Waxes

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Verified step by step guidance

Step 1: Begin by understanding the structure of each lipid type mentioned in the problem. Lipids are a diverse group of molecules, and their classification depends on their chemical structure and function.

Step 2: Recall that triglycerides are composed of three fatty acid chains attached to a glycerol backbone. This structure is formed through esterification reactions between the hydroxyl groups of glycerol and the carboxyl groups of fatty acids.

Step 3: Compare this structure to phospholipids, which also have a glycerol backbone but differ because they contain two fatty acid chains and a phosphate group attached to the third hydroxyl group of glycerol.

Step 4: Consider steroids, which are structurally distinct from triglycerides and phospholipids. Steroids are composed of a fused ring system (typically four rings) and do not have fatty acid chains or a glycerol backbone.

Step 5: Evaluate waxes, which are composed of long-chain fatty acids esterified to long-chain alcohols, and note that they do not include a glycerol backbone. Based on this comparison, identify the lipid type that matches the description in the question.