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Steady-State Conditions definitions

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  • Steady State
    A period in an enzyme reaction where the concentration of the enzyme-substrate complex remains unchanged, enabling key kinetic assumptions.
  • Pre Steady State
    The initial phase of an enzyme reaction when substrate and enzyme concentrations are high, but enzyme-substrate complex and product are low.
  • Enzyme-Substrate Complex
    A transient molecular assembly formed when an enzyme binds its substrate, central to reaction kinetics.
  • Free Enzyme
    Unbound enzyme molecules available to interact with substrate at the start of a reaction.
  • Free Substrate
    Unbound substrate molecules present in high concentration at the beginning of an enzyme-catalyzed reaction.
  • Product
    The molecule generated from substrate transformation during an enzyme-catalyzed reaction.
  • Association Rate
    The velocity at which enzyme and substrate combine to form the enzyme-substrate complex, denoted as v1.
  • Dissociation Rate
    The sum of velocities at which the enzyme-substrate complex breaks apart, either to enzyme and substrate or enzyme and product.
  • Michaelis Constant
    A value derived from steady state assumptions, relating rate constants and concentrations in enzyme kinetics.
  • Rate Law
    An expression linking reaction velocity to rate constants and reactant concentrations in enzyme kinetics.
  • Reaction Velocity
    The speed at which reactants are converted to products in an enzyme-catalyzed process.
  • Michaelis-Menten Equation
    A mathematical model describing enzyme kinetics, derived under steady state conditions.
  • Rate Constant
    A proportionality factor in rate laws, specific to each step in an enzyme-catalyzed reaction.
  • Kinetic Assumption
    A foundational premise, such as steady state, used to simplify and analyze enzyme reaction rates.