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

Previous problemNext problem

Struggling with Biochemistry?

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

Multiple Choice

Which class of lipids does the following molecule belong to?\[\text{CH}_3(\text{CH}_2)_{16}\text{COOCH}_2\text{CH}(\text{OH})\text{CH}_2\text{OH}\]

Phospholipid

Monoacylglycerol

Waxes

Triacylglycerol

Previous problemNext problem

Verified step by step guidance

Step 1: Analyze the molecular structure provided. The molecule consists of a long hydrocarbon chain ( ext{CH}_3( ext{CH}_2)_{16}) attached to a carboxylic acid group ( ext{COO}) and a glycerol backbone ( ext{CH}_2 ext{CH}( ext{OH}) ext{CH}_2 ext{OH}).

Step 2: Identify the functional groups. The molecule has one fatty acid chain esterified to the glycerol backbone, which is characteristic of monoacylglycerols. A monoacylglycerol contains one fatty acid attached to the glycerol backbone via an ester bond.

Step 3: Compare the structure to other lipid classes. Phospholipids typically contain a phosphate group, which is absent here. Waxes are esters of long-chain fatty acids and alcohols, but this molecule has a glycerol backbone, not a simple alcohol. Triacylglycerols have three fatty acids attached to the glycerol backbone, whereas this molecule has only one.

Step 4: Eliminate incorrect options based on the structural analysis. Since the molecule does not contain a phosphate group, it cannot be a phospholipid. It is not a wax due to the presence of a glycerol backbone. It is not a triacylglycerol because it has only one fatty acid chain.

Step 5: Conclude that the molecule belongs to the class of monoacylglycerols, as it matches the defining characteristics of this lipid class: one fatty acid chain esterified to a glycerol backbone.