An enzyme - changes only the forward, but not the backward rate constant for a r
ID: 985923 • Letter: A
Question
An enzyme - changes only the forward, but not the backward rate constant for a reaction changes the equilibrium constant for a reaction stabilizes the transition state of the reaction uses binding energy of substrate interaction to speed up the reaction is usually very specific in the reaction it will catalyze Sodium dodecyl sulfate (SDS) has a polar sulfate head attached to a long hydrocarbon tail. When placed in water, SDS forms a micelle. Explain the thermodynamic basis (in terms of AH and AS) and driving force for this phenomenon.Explanation / Answer
7. a) An enzyme -
v) is usually very specific in the reaction it will catalyze
b) Sodium dodecyl sulfate (DS) with a polar sulfate head group attached to a non-polar hydrophobic hydrocarbon tail forms micelle when placed in a polar solvent as water. The micelle with a crtitical mcelle concentration needed to form the mcellar structure is associated with a cwrtain amount of enthalpy and entropy. Below this value the micelle structure is not formed in solution and the SDS remains as separate molecules. The reduced surface area of the micelle is the driving force for the formation of micellar structure.