Short answer type questions
Describe the chemiosmotic mechanism of ATP synthesis
Describe the chemiosmotic mechanism of ATP synthesis
Chemiosmosis is the process of movement of ions across a semipermeable membrane, down their electrochemical gradient. The generation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis is a good example of chemiosmosis.
ATP synthase is the enzyme required for ATP synthesis. It allows protons to pass through the membrane and uses the free energy difference to phosphorylate adenosine diphosphate (ADP) into ATP. Chemiosmosis for ATP synthesis occurs in mitochondria and chloroplasts and in most bacteria and archaea. An electron transport chain pumps H+ ions in the thylakoid spaces to the stroma. The energy generated by the electron movement through electron transport chains cross through the ATP synthase and allows the protons to pass through them. It then uses this free energy difference to photophosphorylate ADP into ATP.
Chemiosmosis is the process of movement of ions across a semipermeable membrane, down their electrochemical gradient. The generation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis is a good example of chemiosmosis.
ATP synthase is the enzyme required for ATP synthesis. It allows protons to pass through the membrane and uses the free energy difference to phosphorylate adenosine diphosphate (ADP) into ATP. Chemiosmosis for ATP synthesis occurs in mitochondria and chloroplasts and in most bacteria and archaea. An electron transport chain pumps H+ ions in the thylakoid spaces to the stroma. The energy generated by the electron movement through electron transport chains cross through the ATP synthase and allows the protons to pass through them. It then uses this free energy difference to photophosphorylate ADP into ATP.
