If you were to damage the nerve cells in your spinal cord then you would not be able to heal due to nerve cells permanently staying in G0 (resting phase) without ever moving on to G1 (growth phase 1). What step of the cell cycle would researchers need to figure out how to get these types of cells to enter in order to start dividing again?

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.