Which outcome reduces enzyme activity when adding heavy water?

💡 Explanation

Enzyme activity drops because kinetic isotope effects from deuterium significantly slow hydrogen bond dynamics, altering substrate binding site conformation rather than general proton transfer; therefore activity diminishes but thermodynamics are less affected.

• Which outcome occurs when the iron isotope Fe-56 experiences neutron capture?
• Which outcome characterizes single-mode laser operation in optical fiber?
• Which consequence results when unpolarized light reflects Brewster's angle?
• Which outcome occurs when turbulent flow disrupts fringe visibility?
• Which effect occurs when the working fluid in closed-loop Rankine cycle leaks downstream of turbines?
• Which outcome occurs when exceeding critical current density?