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

Which statement correctly describes the probable locations of amino acids within a globular protein in aqueous solution?

Hydrophilic amino acids are found exclusively in the protein core.

All amino acids are randomly distributed throughout the protein regardless of their side chain properties.

Hydrophobic amino acids are typically found in the interior, while hydrophilic amino acids are usually located on the surface.

Hydrophobic amino acids are always exposed to the aqueous environment.

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Verified step by step guidance

Understand the structure of a globular protein: Globular proteins are compact, spherical proteins that are soluble in aqueous solutions. Their structure is influenced by the properties of amino acid side chains, particularly their hydrophobicity or hydrophilicity.

Define hydrophobic and hydrophilic amino acids: Hydrophobic amino acids have nonpolar side chains that avoid water and prefer to interact with other hydrophobic groups. Hydrophilic amino acids have polar or charged side chains that interact favorably with water molecules.

Analyze the environment of a globular protein in aqueous solution: In an aqueous environment, hydrophobic amino acids tend to cluster together in the interior of the protein to minimize their exposure to water, while hydrophilic amino acids are typically found on the surface where they can interact with water.

Evaluate the given statements: Hydrophilic amino acids are not found exclusively in the protein core, as they are usually located on the surface. Amino acids are not randomly distributed; their placement is influenced by their side chain properties. Hydrophobic amino acids are not exposed to the aqueous environment; they are typically buried in the interior.

Conclude the correct description: The correct statement is that hydrophobic amino acids are typically found in the interior of the protein, while hydrophilic amino acids are usually located on the surface. This arrangement is driven by the need to stabilize the protein structure in an aqueous environment.