Answer:
ATP synhtesis in both chloropasts and mitochondria involves the process called CHEMIOSMOSIS.
Step-by-step explanation:
Chemiosmosis is when ions move by diffusion across a semi permeable membrane , such as the one inside mitochondria. The function of this process is the production of adenosine triphosphate (ATP), that is the main molecule utilized for energy by the cell. Eukaryotics cell produces ATP during cellular respiration in the mitochondria .