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BIO NMDCAT Proteins
nmdcat.online June 29, 2026

The secondary structure of a protein, such as the α-helix, is primarily stabilized by

A. Disulfide bridges
B. Hydrophobic interactions
C. Hydrogen bonds between the backbone carbonyl oxygen and amide hydrogen
✓
D. Peptide bonds

📝 Explanation

Secondary structures are stabilized by hydrogen bonding between peptide backbone atoms rather than side chains.

📖 Additional Information

  • Disulfide bridges
  • Hydrophobic interactions
  • Hydrogen bonds between the backbone carbonyl oxygen and amide hydrogen
  • Peptide bonds

Secondary structures are stabilized by hydrogen bonding between peptide backbone atoms rather than side chains.

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