However, use of the gal is deprecated by ISO 80000-3:2006. The gal is a derived unit, defined in terms of the centimeterâgramâsecond (CGS) base unit of length, the centimeter, and the second, which is the base unit of time in both the CGS and the modern SI system.
It has been shown experimentally that if the amount of the enzyme is kept constant and the substrate concentration is then gradually increased, the reaction velocity will increase until it reaches a maximum. After this point, increases in substrate concentration will not increase the velocity (delta A/delta T). This is represented graphically in Figure 8. It is theorized that when this maximum velocity had been reached, all of the available enzyme has been converted to ES, the enzyme substrate complex.
Re: The Effect of Changing the Concentration of an Enzyme... by BioWizard on April 6th, 2010, 2:38 am. Obviously in this case, the increased concentration of enzyme results in an increased rate of reaction, up to a given point when all of the active sites of the enzyme are used up. That statement is phrased weird. The more enzyme you add, the more sites there is. Thus, as you add enzyme, you increase the concentration of available sites, not the other way around. I suppose what you meant to say is up to a given point where all the substrate molecules are bound to enzyme.