What are the 3 vitamins that we cannot get from our diet and where do they come from?

Our body prepared these types of vitamins

This is the most closely resembles the model. 

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.