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

Amino acids joining together to make a peptide is a good example of a(n) ________ reaction.

oxidation-reduction

isomerization

hydrolysis

condensation (dehydration synthesis)

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Verified step by step guidance

Understand the process of peptide bond formation: Amino acids join together through a chemical reaction where the carboxyl group (-COOH) of one amino acid reacts with the amino group (-NH2) of another amino acid.

Recognize the type of reaction: During this process, a molecule of water (H₂O) is removed, which is characteristic of a condensation (dehydration synthesis) reaction.

Clarify why it is not the other options: Oxidation-reduction involves electron transfer, isomerization involves structural rearrangement within a molecule, and hydrolysis involves breaking bonds by adding water, which is the opposite of condensation.

Relate the reaction to peptide bond formation: The removal of water leads to the formation of a covalent bond known as a peptide bond between the two amino acids.

Conclude the concept: Condensation (dehydration synthesis) is the correct term for the reaction where amino acids join to form peptides, as it involves the removal of water to create a larger molecule.