How do severe deviations in pH affect enzyme function?
Answer
They can cause denaturation, permanently altering shape and abolishing specific catalysis.
Significant deviations from optimal pH cause charged residues in the active site to become protonated or deprotonated incorrectly, disrupting the required chemical microenvironment, which, if severe, leads to denaturation—a permanent loss of the specific three-dimensional shape required for function.

Related Questions
What is the primary role of enzymes in biological reactions?What characteristic ensures metabolic pathways function without chaotic crosstalk?How is the three-dimensional structure of the active site formed?What distinguishes the induced-fit model from the lock-and-key model?Which noncovalent force is specifically mentioned as involving electrostatic attractions between charged groups on the enzyme and substrate?What type of specificity describes an enzyme that acts only on molecules sharing a specific functional group, regardless of the overall structure?Why does trypsin cleave peptide bonds after lysine or arginine, while chymotrypsin cleaves after large hydrophobic residues?How do severe deviations in pH affect enzyme function?What mechanism involves a regulator binding to a site *separate* from the active site to modulate function?In kinetic analysis, what does a lower Michaelis constant ($ ext{K}_ ext{m}$) indicate about an enzyme?