The bond that determines the secondary structure of protein is:
Correct answer: C. Hydrogen bond
- A. Coordinate bond
- B. Covalent bond
- C. Hydrogen bond
- D. Ionic bond
Explanation
Hydrogen bonds play a crucial role in determining the secondary structure of proteins. They are weak electrostatic attractions between the positively charged hydrogen atoms and negatively charged oxygen or nitrogen atoms in the peptide backbone. These bonds help stabilize the alpha helix and beta sheet structures, which are the two main types of secondary structures in proteins
This question appeared on the KMU MDCAT 2023 (retake) paper, which you can sit online with every answer explained.
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About Proteins
Proteins are polymers of amino acids joined by peptide bonds, and their function depends on primary, secondary, tertiary and quaternary structure. The topic covers fibrous and globular proteins, enzymes, antibodies, hormones and transport proteins, as well as denaturation by heat or extreme pH.
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