affinity constant

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• Affinity laws — The affinity laws are used in hydraulics and HVAC to express the relationship between several variables involved in pump or fan performance (such as head, volumetric flow rate, shaft speed, and power). They apply to pumps, fans, and hydraulic… …   Wikipedia

• affinity — An expression of the strength of interaction between two entities, eg. between receptor and ligand or between enzyme and substrate. The affinity is usually characterized by the equilibrium constant association constant or dissociation constant… …   Dictionary of molecular biology

• affinity — 1. In chemistry, the force that impels certain atoms to bind to or unite with certain others to form complexes or compounds; chemical attraction. 2. Selective staining of a tissue by a dye or the selective uptake of a dye, chemical, or other s …   Medical dictionary

• Dissociation constant — Kd redirects here. For other uses, see KD (disambiguation). In chemistry, biochemistry, and pharmacology, a dissociation constant is a specific type of equilibrium constant that measures the propensity of a larger object to separate (dissociate)… …   Wikipedia

• Chemical affinity — In chemical physics and physical chemistry, chemical affinity is the electronic property by which dissimilar chemical species are capable of forming chemical compounds.[1] Chemical affinity can also refer to the tendency of an atom or compound to …   Wikipedia

• Acid dissociation constant — Acetic acid, a weak acid, donates a proton (hydrogen ion, high …   Wikipedia

• Binding constant — The binding constant is a special case of the equilibrium constant K. The equilibrium state of molecular binding, i.e. the balance between the binding and dissociation processes after infinite reaction time, may be formalized as the unbound… …   Wikipedia

• equilibrium constant — (= equilibrium dissociation constant; dissociation constant) The ratio of the reverse and forward rate constants for a reaction of the type A + B = AB. At equilibrium the equilibrium constant (K) equals the product of the concentrations of… …   Dictionary of molecular biology

• Distribution constant — The distribution constant (or partition ratio), is the equilibrium constant for the distribution of an analyte in two immiscible solvents.[1] For a particular solvent, it is equal to the ratio of its molar concentration in the stationary phase to …   Wikipedia

• Michaelis constant — Mi·chae·lis constant mī kā ləs , mə n a constant that is a measure of the kinetics of an enzyme reaction and that is equivalent to the concentration of substrate at which the reaction takes place at one half its maximum rate Michaelis Leonor… …   Medical dictionary

• Mi|chae|lis constant — «my KAY lihs, MY kuh lihs», Biochemistry. a measure of the affinity of an enzyme for its substrate, equal to the substrate concentration at which the enzyme catalyzed reaction proceeds at half of its maximal rate. ╂[< Leonor Michaelis, 1875… …   Useful english dictionary