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

What is the main function of lipids in living organisms?

They serve as a major source of long-term energy storage.

They are the primary source of genetic information.

They catalyze biochemical reactions as enzymes.

They provide immediate energy through glycolysis.

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Verified step by step guidance

Understand the role of lipids in living organisms: Lipids are a diverse group of biomolecules that include fats, oils, phospholipids, and steroids. Their primary function is related to energy storage, structural components of cell membranes, and signaling.

Analyze the options provided: The question asks for the main function of lipids, so we need to evaluate each option in the context of lipid functions.

Option 1: 'They serve as a major source of long-term energy storage.' This is correct because lipids, particularly triglycerides, are stored in adipose tissue and provide a dense form of energy that can be utilized over time.

Option 2: 'They are the primary source of genetic information.' This is incorrect because genetic information is stored in nucleic acids (DNA and RNA), not lipids.

Option 3: 'They catalyze biochemical reactions as enzymes.' This is incorrect because enzymes are proteins, not lipids. Option 4: 'They provide immediate energy through glycolysis.' This is also incorrect because glycolysis involves carbohydrates (glucose), not lipids.