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

Lipids differ from other large biological molecules in that they _____.

are not true polymers

are composed of amino acids

readily dissolve in water

contain glycosidic linkages

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Verified step by step guidance

Understand the definition of lipids: Lipids are a diverse group of hydrophobic molecules, including fats, oils, phospholipids, and steroids. They are primarily composed of carbon, hydrogen, and oxygen atoms.

Recognize the structural difference: Unlike proteins, carbohydrates, and nucleic acids, lipids are not formed by repetitive monomer units linked together in a chain. This means they are not true polymers.

Analyze the incorrect options: Lipids are not composed of amino acids (this is characteristic of proteins), they do not readily dissolve in water (they are hydrophobic), and they do not contain glycosidic linkages (these are found in carbohydrates).

Focus on the correct characteristic: Lipids are unique because they are not true polymers. Instead, they are formed from smaller molecules like glycerol and fatty acids through ester linkages.

Summarize the reasoning: The correct answer is 'are not true polymers,' as this distinguishes lipids from other macromolecules like proteins and carbohydrates.