The (activation / inhibition/ saturation) point of an enzyme is reached when all active sites have bound substrate molecules. When a noncompetitive inhibitor molecule binds to an (active/ allosteric) site on an enzyme, the shape of the active site changes so that the substrate molecules can no longer bind.
There are 0 calories in a 8 fl oz serving of Perrier Sparkling Natural Mineral Water. Calorie breakdown: 0% fat, 0% carbs, 0% protein.
Calorie Count. One 12-ounce can of regular -- nonlight -- Tecate contains about 138 calories, whereas the average regular beer contains about 153 calories in the same serving. If you're watching your waistline, however, the light version is a more sensible choice.