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

4. Protein Structure

Tertiary Structure of Protein

Biochemistry

4. Protein Structure

Tertiary Structure of Protein

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Multiple Choice

The tertiary structure of a protein is not directly dependent on _____.

disulfide bridges

hydrogen bonds

peptide bonds

hydrophobic interactions

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Verified step by step guidance

Step 1: Understand the concept of protein structure. Proteins have four levels of structure: primary, secondary, tertiary, and quaternary. The tertiary structure refers to the three-dimensional folding of a protein, which is stabilized by various interactions between amino acid side chains.

Step 2: Review the types of interactions that stabilize tertiary structure. These include disulfide bridges (covalent bonds between cysteine residues), hydrogen bonds (between polar side chains), hydrophobic interactions (between nonpolar side chains), and ionic bonds (between charged side chains).

Step 3: Recognize the role of peptide bonds. Peptide bonds are covalent bonds that link amino acids together in the primary structure of a protein. While they are essential for forming the protein chain, they do not directly contribute to the folding and stabilization of the tertiary structure.

Step 4: Compare peptide bonds to the other interactions listed. Disulfide bridges, hydrogen bonds, and hydrophobic interactions are all directly involved in stabilizing the tertiary structure, whereas peptide bonds are part of the backbone and primarily influence the primary structure.

Step 5: Conclude that the tertiary structure of a protein is not directly dependent on peptide bonds, as they are involved in the primary structure rather than the folding and stabilization of the three-dimensional shape.