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 result is an increased volume of dilute urine and a decrease in blood volume. When faced with a decrease in blood pressure it does nothing to increase blood volume, it just decreases the amount of filtrate formed, increases reabsorption from filtrate to blood, and decreases the amount of water lost in urine.utoregulatory controls of blood flow to the lungs are the opposite of what happens in most tissues: low pulmonary oxygen causes vasoconstriction, while higher oxygen causes vasodilation. Movement of blood through the coronary circulation of the heart is influenced by aortic pressure and the pumping of the ventricles.