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 manufactured by the liver and is a major constituent of cell membranes?

Glycogen

Triglyceride

Cholesterol

Hemoglobin

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Verified step by step guidance

Step 1: Begin by identifying the key components of the question. The question asks for a substance manufactured by the liver that is a major constituent of cell membranes.

Step 2: Recall the primary functions of the liver. The liver is responsible for synthesizing various biomolecules, including cholesterol, glycogen, triglycerides, and proteins like hemoglobin.

Step 3: Understand the role of each option provided: Glycogen is a storage form of glucose, triglycerides are fats used for energy storage, hemoglobin is a protein responsible for oxygen transport in blood, and cholesterol is a lipid that plays a critical role in maintaining cell membrane structure and fluidity.

Step 4: Focus on the phrase 'major constituent of cell membranes.' Cholesterol is specifically known for its role in stabilizing and modulating the fluidity of cell membranes, making it the correct answer.

Step 5: Conclude that cholesterol is synthesized by the liver and is essential for cell membrane integrity, distinguishing it from the other options provided.