Mitochondria are membrane-bound organelles found in the cytoplasm of all eukaryotic cells.
Mitochondria are also known as chondriosome or sarcosome.
Chemical energy is stored in mitochondria in the form of adenosine triphosphate (ATP).
Hence mitochondria are also known as the powerhouse of the cell.
The function of mitochondria in both plant and animal cells is to generate cellular energy through the production of adenosine triphosphate (ATP) as part of the Krebs circuit.
ATP is used by all living cells to produce energy. Mitochondria resemble bacterial cells but have their own DNA.
Analogy for mitochondria:
Analogy is when we compare two things based on the factors that are alike.
Mitochondria provides energy to the cell in the form of ATP to carry out all the cellular functions.
Thus, a good analogy for mitochondria can be - if a cell is a car, then the mitochondria is its engine which is required to provide the car with energy to function.