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 best describes a result of an organism having lipids in its body?

Lipids directly catalyze biochemical reactions as enzymes.

Lipids provide a long-term energy storage source.

Lipids are the primary source of genetic information.

Lipids are responsible for the transport of oxygen in the blood.

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Verified step by step guidance

Step 1: Begin by understanding the role of lipids in biological systems. Lipids are a diverse group of hydrophobic molecules, including fats, oils, phospholipids, and steroids, and they play various roles in organisms.

Step 2: Evaluate the first option: 'Lipids directly catalyze biochemical reactions as enzymes.' Recall that enzymes are typically proteins, not lipids. Lipids do not function as catalysts in biochemical reactions.

Step 3: Evaluate the second option: 'Lipids provide a long-term energy storage source.' Lipids, particularly triglycerides, are well-known for their role in storing energy. They provide more energy per gram compared to carbohydrates and are used for long-term energy storage in organisms.

Step 4: Evaluate the third option: 'Lipids are the primary source of genetic information.' Genetic information is stored in nucleic acids (DNA and RNA), not lipids. Lipids do not play a role in encoding genetic information.

Step 5: Evaluate the fourth option: 'Lipids are responsible for the transport of oxygen in the blood.' Oxygen transport in the blood is primarily carried out by hemoglobin, a protein found in red blood cells. Lipids are not involved in this process. Based on the analysis, the correct description of lipids is their role in long-term energy storage.