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Which 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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