A cell must be able to do all of the above to survive, simply put. In order to survive, the cell must be able to obtain and process energy. No energy, and the cell cannot do a thing. This is why the mitochondria is the powerhouse of the cell. Secondly, if a cell cannot convert the genetic information into proteins, it can’t carry anything out.
Even if it has the energy, it won’t have the instructions. Without these two things, it’s like trying to put together a toy late on Christmas Eve: you’re tired and don’t want to read the instructions. Or can’t find them. Finally, if the biochemical reactions are not kept separate, a deadly reaction may occur. That’s never good.