Question

What is mitochondria.what are its functions.

Answer 1

Functions of mitochondria depends on the cell type in which they are present.
1) The most important function of the mitochondria is to produce energy. The simpler molecules of nutrition are sent to the mitochondria to be processed and to produce charged molecules. These charged molecules combine with oxygen and produce ATP molecules. This process is known as oxidative phosphorylation. 
2) Mitochondria help the cells to maintain proper concentration of calcium ions within the compartments of the cell. 
3) The mitochondria also help in building certain parts of blood and hormones like testosterone and estrogen. 
4) The liver cells mitochondria have enzymes that detoxify ammonia. 
5) The mitochondria also play important role in the process of apoptosis or programmed cell death. Abnormal death of cells due to the dysfunction of mitochondria can affect the function of organ.