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 of the following is a phospholipid?

Phosphatidylcholine

Triacylglycerol

Sphingosine

Cholesterol

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Verified step by step guidance

Step 1: Understand the definition of a phospholipid. A phospholipid is a type of lipid molecule that contains a phosphate group, a glycerol backbone, and two fatty acid chains. It is a major component of cell membranes.

Step 2: Analyze the options provided. Look for the molecule that fits the structural criteria of a phospholipid, specifically one that contains a phosphate group and is involved in membrane structure.

Step 3: Evaluate 'Phosphatidylcholine.' This molecule is a well-known phospholipid that contains a phosphate group, a glycerol backbone, and fatty acid chains. It is commonly found in cell membranes.

Step 4: Examine 'Triacylglycerol.' This molecule consists of a glycerol backbone and three fatty acid chains but lacks a phosphate group, so it is not a phospholipid.

Step 5: Review 'Sphingosine' and 'Cholesterol.' Sphingosine is a backbone for sphingolipids, not a phospholipid. Cholesterol is a sterol and does not contain a phosphate group, so it is also not a phospholipid.