$\bullet$ Mitochondria consists of an outer membrane and an inner membrane. The inner membrane shows many infoldings, known as cristae.
  $\bullet$ Chloroplasts also have a double membrane like mitochondria, but no cristae.
  $\bullet$ Lysosomes and golgi apparatus on the other hand, are single membrane bound cell organelles.

Leucoplasts are the white or colourless plastids. They are the primary organelles for storage of materials such as starch, oils, protein granules, etc.
Example: Leucoplasts are found in root cells, pulses, groundnut, etc.

Mitochondria are specialised cell organelles which serve as batteries, powering various functions of the cell and an organism as a whole.
They have their own genetic material and ribosomes which helps in synthesising proteins.