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← ScienceWhich mechanism causes greater protein aggregation when pH decreases?
A)Increased hydrophobic interaction strength✓
B)Weakening peptide bond resonance
C)Reduced disulfide bridge stabilization
D)Enhanced van der Waals attractions
💡 Explanation
Decreasing pH causes protonation of amino acid side chains which increases hydrophobic interactions; therefore, hydrophobic interaction strength increases aggregation, rather than disulfide bridges failing, because protonation is the initial catalytic condition.
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