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

Primary Structure of Protein

Biochemistry

4. Protein Structure

Primary Structure of Protein

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Multiple Choice

Which type of bonding is primarily responsible for stabilizing the primary structure of a protein?

Disulfide bonds

Hydrogen bonds

Ionic bonds

Peptide bonds

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Verified step by step guidance

Step 1: Understand the primary structure of a protein. The primary structure refers to the linear sequence of amino acids in a polypeptide chain, which is determined by the genetic code.

Step 2: Recall the type of bond that links amino acids together. Amino acids are connected by peptide bonds, which are covalent bonds formed during a dehydration reaction between the carboxyl group of one amino acid and the amino group of another.

Step 3: Differentiate peptide bonds from other types of bonds mentioned in the problem. Disulfide bonds, hydrogen bonds, and ionic bonds are involved in stabilizing higher levels of protein structure (secondary, tertiary, or quaternary), but they do not stabilize the primary structure.

Step 4: Recognize that peptide bonds are the backbone of the primary structure. These bonds create the polypeptide chain, which serves as the foundation for all higher-order structures of the protein.

Step 5: Conclude that peptide bonds are the correct answer because they are the primary stabilizing force for the linear sequence of amino acids in the primary structure of a protein.