The part of cell that is responsible for the production of energy is

The part of the cell responsible for the production of energy is the mitochondrion. The mitochondria are often referred to as the "powerhouses" of the cell because they produce the energy that the cell needs to function. They do this by breaking down sugars and other molecules in a process called cellular respiration. This process releases energy that the cell can use, and the mitochondria are where this process takes place. The nucleus is the control center of the cell and contains the cell's genetic material, while the cytoplasm is the gel-like substance that fills the cell and supports its organelles, and the cell membrane is a thin, flexible barrier that surrounds the cell and controls what enters and exits it.