Concept explainers
(a)
Interpretation:
The a-keratin and hemoglobin should be compared on the basis of secondary structure.
Concept Introduction:
The primary structure of a protein is the sequence of amino acids. The a-helix and β-sheet structures are the secondary structures. Similarly, tertiary and quaternary structures also have certain weak intermolecular forces. These structures have different intermolecular forces between peptide chains like hydrogen bonds, S-S bonds, etc. which get altered after heating or in the presence of certain chemicals. Hence, these structures get changed during the denaturation of the protein.
(b)
Interpretation:
The a-keratin and hemoglobin should be compared on the basis of water solubility.
Concept Introduction:
The primary structure of a protein is the sequence of amino acids. The a-helix and β-sheet structures are the secondary structures. Similarly, tertiary and quaternary structures also have certain weak intermolecular forces. These structures have different intermolecular forces between peptide chains like hydrogen bonds, S-S bonds, etc. which get altered after heating or in the presence of certain chemicals. Hence, these structures get changed during the denaturation of the protein.
(c)
Interpretation:
The a-keratin and hemoglobin should be compared on the basis of the function.
Concept Introduction:
The primary structure of a protein is the sequence of amino acids. The a-helix and β-sheet structures are the secondary structures. Similarly, tertiary and quaternary structures also have certain weak intermolecular forces. These structures have different intermolecular forces between peptide chains like hydrogen bonds, S-S bonds, etc. which get altered after heating or in the presence of certain chemicals. Hence, these structures get changed during the denaturation of the protein.
(d)
Interpretation:
The a-keratin and hemoglobin should be compared on the basis of location in the body.
Concept Introduction:
The primary structure of protein is the sequence of amino acids. The a-helix and β-sheet structure are the secondary structures. Similarly tertiary and quaternary structures also have certain weak intermolecular forces. These structures have different intermolecular forces between peptide chains like hydrogen bonds, S-S bonds, etc. which get altered after heating or in the presence of certain chemicals. Hence these structures get changed during denaturation of the protein.

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Chapter 21 Solutions
ALEKS 360 ACCESS CARD F/GEN. ORG.CHEM
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- A mixture of C7H12O2, C9H9OCl, biphenyl and acetone was put together in a gas chromatography tube. Please decide from the GC resutls which correspond to the peak for C7,C9 and biphenyl and explain the reasoning based on GC results. Eliminate unnecessary peaks from Gas Chromatography results.arrow_forwardIs the molecule chiral, meso, or achiral? CI .CH3 H₂C CIarrow_forwardPLEASE HELP ! URGENT!arrow_forward
- Identify priority of the substituents: CH3arrow_forwardHow many chiral carbons are in the molecule? OH F CI Brarrow_forwardA mixture of three compounds Phen-A, Acet-B and Rin-C was analyzed using TLC with 1:9 ethanol: hexane as the mobile phase. The TLC plate showed three spots of R, 0.1 and 0.2 and 0.3. Which of the three compounds (Phen-A; Acet-B or Rin-C) would have the highest (Blank 1), middle (Blank 2) and lowest (Blank 3) spot respectively? 0 CH: 0 CH, 0 H.C OH H.CN OH Acet-B Rin-C phen-A A A <arrow_forward
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