Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich chemical reaction parameter shifts significantly when increasing electrolyte ionic strength around a protein?
A)Michaelis constant (Km)✓
B)Reaction equilibrium constant (K)
C)Arrhenius frequency factor (A)
D)Protonation constant (pKa)
💡 Explanation
When ionic strength increases, charge screening affects protein-substrate electrostatic interactions by modulating binding affinity, influencing the apparent value of Michaelis constant Km, which reflects substrate concentration at half-maximal reaction velocity. Therefore the Km shifts, rather than K, A, or pKa, whose primary dependencies lie elsewhere.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which phenomenon limits electron tunneling rate between quantum dots mimicking atomic orbitals in a transistor?
- Which risk increases following the adiabatic expansion stage in a large-scale reciprocating engine?
- Which risk increases when a waveguide's dimensions approach λ/2 for the propagating wave?
- Which outcome occurs when approaching the bandgap limit of nanocrystal quantum dots near 0 Kelvin?
- Which outcome occurs when high-energy photons strike a molecule with electrons in bonding orbitals?
- Which mechanism causes increased boiling point in complex organic molecules compared to simpler molecules?
