What happens if a cell produces too much of a particular enzyme?

Can it shut down the entire pathway, and how does this work if the enzyme is just a catalyst? Does it matter how much of an enzyme the cell produces?What happens if a cell produces too much of a particular enzyme?
Ok, first of all, an enzyme is a catalyst. Catalysts are usually referred to when we speak about chemistry. Enzymes are in cells or biology. They lower the potential energy which causes a reaction to happen.



Ok, so in cells, there are many negative and positive feed back mechanisms which occur. If there is too much of one, the cell usually tells it to shut that off or increase that if there is too little. As far as cells are concerned, depending on what the enzyme is, it may cause problems or it may not. It really depends on what and for how long this occurs.