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a carbon peptide bond CH C-NH-CH–C–O CH2 CH,COO CH,CHCH,

a carbon peptide bond CH C-NH-CH–C–O CH2 CH,COO CH,CHCH,

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The image displays a molecular structure diagram of a dipeptide, highlighting key components such as the alpha carbons, peptide bond, and R groups. ### Diagram Features: 1. **Alpha Carbons (α carbon):** - Two alpha carbons are labeled. They are central carbon atoms in the amino acid residues. 2. **Peptide Bond:** - The peptide bond is marked between the carbonyl group (C=O) of one amino acid and the nitrogen (NH) of the next. This bond connects the two amino acids. 3. **R Group:** - The R groups are side chains attached to the alpha carbon, providing unique properties to the amino acids. These are depicted at the bottom of the structure but are not specifically labeled in the image. ### Structural Details: - The molecular formula indicated is for a dipeptide chain with two amino acids connected by a peptide bond. - The first amino acid on the left shows an amino group (NH₃⁺) linked to the alpha carbon. - The sequence proceeds with a carbonyl group (C=O) forming the peptide bond with the next amino acid unit. - The R group for each amino acid is attached to the alpha carbon, providing diversity in amino acid structure and function. This diagram serves as a fundamental representation to illustrate how amino acids are joined in proteins, emphasizing the importance of the peptide bond and the structural diversity introduced by R groups.
Transcribed Image Text:The image displays a molecular structure diagram of a dipeptide, highlighting key components such as the alpha carbons, peptide bond, and R groups. ### Diagram Features: 1. **Alpha Carbons (α carbon):** - Two alpha carbons are labeled. They are central carbon atoms in the amino acid residues. 2. **Peptide Bond:** - The peptide bond is marked between the carbonyl group (C=O) of one amino acid and the nitrogen (NH) of the next. This bond connects the two amino acids. 3. **R Group:** - The R groups are side chains attached to the alpha carbon, providing unique properties to the amino acids. These are depicted at the bottom of the structure but are not specifically labeled in the image. ### Structural Details: - The molecular formula indicated is for a dipeptide chain with two amino acids connected by a peptide bond. - The first amino acid on the left shows an amino group (NH₃⁺) linked to the alpha carbon. - The sequence proceeds with a carbonyl group (C=O) forming the peptide bond with the next amino acid unit. - The R group for each amino acid is attached to the alpha carbon, providing diversity in amino acid structure and function. This diagram serves as a fundamental representation to illustrate how amino acids are joined in proteins, emphasizing the importance of the peptide bond and the structural diversity introduced by R groups.
Expert Solution
Step 1

A polypetide chain mainly contains following groups -

Amino terminus

Alpha carbon

R group (present on alpha carbon)

peptide bond (between CO & NH groups)

Carboxy terminus

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