You would expect to find many mitochondria in a muscle cell. This is because the mitochondria makes the energy fo a cell, and muscle cells need alot of energy to do their job. The more energy a cell needs to do its job, the more mitochondria it has.

Mitochondria or mitochondrion

If there are many mitochondria in a cell, we can clarify that this cell's function would be to support, or be involved in the process of respiration.. I think!

The job of the mitochondria has in it plant cell is the same job that mitochondria have in animal cell. The mitochondria makes energy for the cell to function.

Mitochondria is the powerhouse of a cell.