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Proteins denature at low pH. What characteristic of acidic environments interferes with protein folding?
A. The lack of protons in the solution breaks covalent bonds in the protein
B. The excess protons in the solution break covalent bonds in the protein
C. The lack of protons in the solution breaks hydrogen bonds in the protein
D. The excess protons in the solution break hydrogen bonds in the protein

Respuesta :

Answer: D. The excess protons in the solution breaks hydrogen bonds in the protein

Explanation: When adding acid it adds protons so it messes with the charges causing them to unfold.

The characteristic that interferes with protein folding in an acidic environment is D. The excess protons in the solution break hydrogen bonds in the protein.

Proteins are chains of amino acids with side chains. They fold due to the interaction between the hydrogens, which form hydrogen bonds. The denature occurs when the chain is unfolded.

Low pH means:

  • There is an excess of protons.
  • The pH is below 7.
  • The excess of protons interacts with the hydrogens that form the hydrogen bonds. As a consequence, the protein unfolds and losses its function.

Learn more about proteins here:

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