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 type of macromolecule has members that are primarily hydrophobic?

Lipids

Carbohydrates

Proteins

Nucleic acids

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Verified step by step guidance

Understand the question: The problem asks which type of macromolecule is primarily hydrophobic. Hydrophobic molecules are those that do not interact well with water and are typically nonpolar.

Review the properties of each macromolecule type: Lipids, Carbohydrates, Proteins, and Nucleic Acids. Focus on their chemical structures and interactions with water.

Analyze lipids: Lipids are composed mainly of long hydrocarbon chains or rings, which are nonpolar and hydrophobic. This makes them insoluble in water and ideal for forming cell membranes and storing energy.

Compare with other macromolecules: Carbohydrates are generally hydrophilic due to their hydroxyl (-OH) groups. Proteins can have both hydrophilic and hydrophobic regions depending on their amino acid composition. Nucleic acids are hydrophilic because of their phosphate backbone and polar bases.

Conclude that lipids are the macromolecules that are primarily hydrophobic, as their structure is dominated by nonpolar hydrocarbon chains or rings, making them distinct from the other macromolecules listed.