Usually, an enzyme molecule has only one active site, and the active site fits with one specific type of substrate. An active site contains a binding site that binds the substrate and orients it for catalysis. Residues in the binding site form hydrogen bonds, hydrophobic interactions, or temporary covalent interactions (van der Waals) with the substrate to make an enzyme-substrate complex.
The decreased volume only disrupts the equilibrium if the moles of gaseous products and moles of gaseous reactants are unequal. If there are an equal number of moles of gaseous substances on both sides of the arrow, the change in volume has an equal effect on the concentrations of reactants and of products.
The real-balances effect indicates that: A. an increase in the price level will increase the demand for money, increase interest rates, and reduce consumption and investment spending. B. a lower price level will decrease the real value of many financial assets and therefore reduce spending. C. a higher price level will increase the real value of many financial assets and therefore increase spending.