How many brain cells does the average human have?

100 Billion Cells

Explanation:

The average human brain has over 100 Billion Brain Cells, and about 10 Trillion Connections / Cells Fired each second.

Hope this helps :)

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.

Lipid because of the high percentage of carbon to carbon bonds, which store more energy than other bonds.