Question

Which produces ATP by chemiosmosis?

Answer 1

Chemiosmosis is when ions move by diffusion across a semi-permeable membrane, such as the membrane inside mitochondria. Ions are molecules with a net electric charge, such as Na+, Cl–, or specifically in chemiosmosis that generates energy, H+. During chemiosmosis, ions move down an electrochemical gradient, which is a gradient of electrochemical potential (a form of potential energy). Since chemiosmosis is a type of diffusion, ions will move across a membrane from areas of high concentration to areas of low concentration. Ions also move to balance out the electric charge across a membrane.