Give information about structure, location and function of mitochondria.

Explanation

Mitochondria is stained, specifically to observe under microscope.
The number of mitochondria per cell is variable depending on the physiological activity of the cells.

In terms of shape and size also, considerable degree of variability is observed.
Typically it is sausage-shaped or cylindrical having a diameter of 0.2-1.0 `mu`m (average 0.5 `mu`m) and length 1.0-4.1 `mu`m.
Each mitochondrion is a double membrane-bound structure with the outer membrane and the inner membrane dividing its lumen distinctly into two aqueous compartments, i.e., the outer compartment and the inner compartment.
The inner compartment is called the matrix. The outer membrane forms the number of infoldings called cristae towards the matrix. The cristae increase the surface area.
The two membranes have their own specific enzymes associated with the mitochondrial function.
Mitochondria are the sites of aerobic respiration. They produce cellular energy in the form of ATP, hence they are called .power houses of the cell.
The matrix also possesses single circular DNA molecule, a few RNA molecules, ribosomes (70S) and the components required for the synthesis of proteins.
The mitochondria divide by fission.