Both the kinetics of enzymes and the thermodynamics of biochemical reactions will be discussed in this chapter. Imagine: Saturday night, during early summer. The BBQ grill is stuffed with charcoal, the meat and the veggie burgers are ready to be grilled. …it just is, that the fire doesn’t want to start. Something seems to be wrong with it. From a scientific viewpoint, this is not understandable at all. There is a tremendous amount of energy stored in charcoal. Thermodynamically speaking, the charcoal really “wants” to burn, but nothing happens. The coal definitely “wants” to undergo the chemical reaction with the oxygen in the air. But there is help. Firelighters, paper, wooden kindling, some cardboard as a fan, a hair dryer, or even a gas burner… any of these will likely get the reaction going, somehow-- thus accelerating the reaction’s course or its kinetics, while hopefully none of these will result in serious burns.