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 primary function of lipids in biological systems?

Transporting oxygen in the blood

Catalyzing biochemical reactions

Encoding genetic information

Energy storage

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Verified step by step guidance

Understand the role of lipids in biological systems: Lipids are a diverse group of biomolecules that include fats, oils, phospholipids, and steroids. Their primary functions include energy storage, structural components of cell membranes, and signaling molecules.

Analyze the options provided: Each option represents a distinct biological function. Transporting oxygen in the blood is primarily the role of hemoglobin, a protein. Catalyzing biochemical reactions is the role of enzymes, which are also proteins. Encoding genetic information is the function of nucleic acids like DNA and RNA.

Focus on the correct function of lipids: Lipids are highly efficient molecules for energy storage due to their high caloric content. They store energy in the form of triglycerides, which can be broken down during metabolic processes to release energy.

Relate lipids to energy storage: Lipids are stored in adipose tissue in animals and serve as long-term energy reserves. This is particularly important for organisms that require energy during periods of fasting or high activity.

Conclude that the correct answer is energy storage: Based on the analysis, lipids are not involved in oxygen transport, catalysis, or genetic encoding. Their primary function in biological systems is energy storage.