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

2. Water

Hydrophobic Effect

Biochemistry

2. Water

Hydrophobic Effect

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Multiple Choice

Which of the following best describes molecules that only have hydrophobic regions?

They readily dissolve in aqueous solutions due to their polar nature.

They are nonpolar and do not form hydrogen bonds with water.

They form strong ionic interactions with water molecules.

They are amphipathic and contain both polar and nonpolar regions.

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Verified step by step guidance

Understand the concept of hydrophobic molecules: Hydrophobic molecules are nonpolar and lack polar regions that can interact with water molecules. This means they do not form hydrogen bonds or dissolve readily in aqueous solutions.

Analyze the options provided: Hydrophobic molecules are nonpolar, so they do not dissolve in water or form ionic interactions. They also do not contain both polar and nonpolar regions, which is characteristic of amphipathic molecules.

Eliminate incorrect options: Hydrophobic molecules do not dissolve in water due to their nonpolar nature, so the option stating they dissolve in aqueous solutions is incorrect. Similarly, they do not form strong ionic interactions with water molecules, as ionic interactions require charged regions.

Focus on the correct description: Hydrophobic molecules are nonpolar and do not form hydrogen bonds with water. This is the best description of their behavior in aqueous environments.

Conclude the reasoning: The correct answer is the option stating that hydrophobic molecules are nonpolar and do not form hydrogen bonds with water, as this aligns with their chemical properties and interactions with water.