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

Peptide Bond

Biochemistry

4. Protein Structure

Peptide Bond

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Multiple Choice

Which type of bond is responsible for holding amino acids together in a protein's primary structure?

Hydrogen bond

Ionic bond

Peptide bond

Disulfide bond

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Verified step by step guidance

Understand the primary structure of a protein: The primary structure refers to the linear sequence of amino acids in a polypeptide chain.

Recognize the type of bond that links amino acids: Amino acids are connected by covalent bonds formed during a dehydration synthesis reaction.

Learn the specific name of this bond: The covalent bond formed between the carboxyl group (-COOH) of one amino acid and the amino group (-NH2) of another amino acid is called a peptide bond.

Understand the formation process: During peptide bond formation, a molecule of water (H₂O) is removed, resulting in the linkage of the two amino acids.

Differentiate peptide bonds from other bonds: Hydrogen bonds, ionic bonds, and disulfide bonds play roles in secondary, tertiary, and quaternary structures, but peptide bonds are unique to the primary structure.