Question

mitchocondria are known as the power house of cell why

Answer 1

as the energy currency of the cell in the form of atp are store in mitochondria

Answer 2

Mitochondria is known as the powerhouse of the cell because
$\bold \{it \: is \: that \: organalle \: of \: the \: cell \\ \: where \: energy \: is \: prouced$
hope it helps