mito-, mit-

1. A reference to karyomitosis or division of the nucleus, usually an early stage in the process of cell division, or mitosis (process by which a cell divides into two daughter cells, each of which has the same number of chromosomes as the original cell).
2. The division of the cytoplasm of a cell following the division of the nucleus.

Normal structures responsible for energy production in cells.

Mitochondria are located in the cytoplasm outside the nucleus of the cell and they consist of two sets of membranes, a smooth continuous outer coat and an inner membrane arranged in tubules or in folds that form plate-like double membranes (cristae).

The mitochondria are the principal energy sources of the cell as a result of the presence of specialized enzymes for terminal electron transport, the citric acid cycle, fatty acid oxidation, and oxidative phosphorylation.

A reference to mitochondria which are the normal structures called organelles (specialized structures) in cells.

They are located in the cell's cytoplasm outside the nucleus.

1. A small part in a cell that helps the body to turn food into energy.
2. A small spherical or rodlike body, surrounded by a double membrane, in the cytoplasm of most cells which contains enzymes responsible for energy production.