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 lipids primarily acts as a chemical messenger in the body?

Testosterone

Adipose tissue

Cholesterol

Beeswax

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Verified step by step guidance

Understand the role of lipids in the body: Lipids serve various functions, including energy storage, structural components of cell membranes, and acting as chemical messengers.

Identify the types of lipids listed in the problem: Testosterone is a steroid hormone, adipose tissue is a storage form of fat, cholesterol is a precursor for steroid hormones, and beeswax is a structural lipid.

Focus on the function of chemical messengers: Chemical messengers are molecules that transmit signals within the body, often regulating physiological processes. Steroid hormones like testosterone are key examples of lipids that act as chemical messengers.

Analyze the options: Testosterone is a steroid hormone derived from cholesterol and functions as a chemical messenger. Adipose tissue stores energy but does not act as a messenger. Cholesterol is a precursor for steroid hormones but does not directly act as a messenger. Beeswax is used for structural purposes and does not have a signaling role.

Conclude that the lipid primarily acting as a chemical messenger in the body is testosterone, as it directly regulates physiological processes by signaling through hormone receptors.