How are endocytosis and extocytosis the same?

They both deal with the entry/exit of something from the cell through the cell membrane

Exocytosis, on the other hand, is endocytosis in reverse. The cell expels substances from the cell by way of a vesicle and then fuses with the membrane. In both cases, the substances do not enter or leave the cell by passing through the membrane.

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.