Interpretation of an enzyme

Having not have taken microbiology (or any biology for that matter since sophomore year of high school) and coming into research that has most everything to do with the subject I've struggled somewhat wrapping my head around the concept of enzymes and bacteria and the whole lot. Since my mind works in metaphors most of the time I've decided the best way to understand this is to go about visualizing more common and more easily learned concepts. For instance this is how I view an enzyme:

The enzyme is the pacman and what it "chews" on are the yellow balls and fruit. Now the blue ghost guy is its inhibitor. When it runs into that thing it can't "chew" anymore, or at least can't be productive. Now here's the drama: When my enzyme, cellulase, chews on yellow balls and fruits, cellulose, it breaks it into cellobiose which is dum-dum-dummmm... the BLUE GHOST, aka its inhibitor (I realize this isn't how the pacman game works). Well its a good thing that the package that contains the pacman is connected to a bacteria that turns this blue ghost into ethanol or a proverbial pot of gold (not actually related to pacman but it translates easily).  This ethanol can be used for fuel, yes we know, so its pretty valuable. 

So now you're wondering what is going to happen when the bacteria has had enough of this blue ghost/cellobiose. Well it stops producing the ethanol because it stops breaking down the cellobiose causing there to be an excess amount which inhibits the cellulase from chewing on the cellulose. What a tangled web we weave. Well this is where I come in, theoretically. I want to separate the products (like ethanol) from the cell so it will continue to break down the cellobiose and create more products. More products=More ethanol, More ethanol=More fuel. 

BTW: its not actually an ethanol by corn project, cellulose is found in many other places.