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

Of all the different bond types found in proteins, which one is primarily responsible for linking amino acids together in the primary structure?

Disulfide bond

Ionic bond

Peptide bond

Hydrogen bond

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Verified step by step guidance

Understand the primary structure of proteins: The primary structure refers to the linear sequence of amino acids in a polypeptide chain. These amino acids are linked together by a specific type of bond.

Identify the bond responsible for linking amino acids: Amino acids are connected through a covalent bond formed between the carboxyl group (-COOH) of one amino acid and the amino group (-NH2) of another amino acid. This bond is known as a peptide bond.

Describe the formation of a peptide bond: A peptide bond is formed through a condensation reaction (dehydration synthesis), where a molecule of water (H₂O) is removed as the carboxyl group of one amino acid reacts with the amino group of another.

Differentiate peptide bonds from other bond types: Disulfide bonds, ionic bonds, and hydrogen bonds play roles in stabilizing secondary, tertiary, and quaternary structures of proteins, but they are not responsible for linking amino acids in the primary structure.

Conclude that peptide bonds are the primary type of bond responsible for linking amino acids together in the primary structure of proteins.