Justify the statement, "Mitochondria are powerhouses of the cell".

(N/A) Mitochondria are referred to as the "powerhouses of the cell" because they are the primary sites for cellular respiration.
$1$. They perform aerobic respiration to produce energy in the form of $ATP$ $(Adenosine Triphosphate)$ through the process of oxidative phosphorylation.
$2$. The inner membrane of the mitochondria is folded into structures called cristae, which increase the surface area for the attachment of enzymes involved in the electron transport chain.
$3$. Since $ATP$ is the energy currency used by the cell to perform various metabolic activities, the mitochondria are essential for providing the necessary energy for cellular functions.