Lecto, could you make your question more specific? As Ian said, integrated circuits are made up of hundreds, if not thousands, of transistors, diodes, resistors, etc. The configuration of these components depend on the type of integrated circuit that contains them. For example, here is the internal schematic diagram of a 741 Op-Amp IC, not really any different from what Ian was trying to describe:
**broken link removed**
As you can see, there are many "discrete" components built into just this single chip.
Der Strom