Question

What organelles release energy?

Answer 1

In animal cell it is "Mitochondria".

Explanation:

These organelles are found primarily in animal cells.
Just as a power plant supplies energy to a business, mitochondria release energy for the cell.
This pic is of ATP formation in Mitochondria.
It releases the energy molecules in the form of ATP (Adenosine Triphosphate)

This pic shows the work of ATP in cell.

Which come in contact with other cell organelles that give the energy required to work.