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

3. Amino Acids

Amino Acid Groups

Biochemistry

3. Amino Acids

Amino Acid Groups

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Multiple Choice

Where would the leucine side chain most likely be found in a protein dissolved in water?

Exposed on the surface of the protein, interacting with water

Coordinating metal ions at the active site

Forming hydrogen bonds with water molecules

Buried in the interior of the protein, away from water

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Verified step by step guidance

Understand the chemical properties of leucine: Leucine is a nonpolar, hydrophobic amino acid. Its side chain consists of an aliphatic hydrocarbon group, which does not interact favorably with water.

Recall the structure of proteins in aqueous environments: Proteins dissolved in water typically fold in a way that minimizes the exposure of hydrophobic residues to the surrounding water. Hydrophobic amino acids like leucine are often buried in the interior of the protein.

Consider the role of hydrophobic interactions: Hydrophobic residues cluster together in the protein's interior to avoid contact with water, stabilizing the protein's tertiary structure.

Eliminate incorrect options: Leucine's hydrophobic nature makes it unlikely to be exposed on the surface interacting with water, coordinating metal ions, or forming hydrogen bonds with water molecules.

Conclude the most likely location: Based on its hydrophobic nature, leucine's side chain is most likely buried in the interior of the protein, away from water.