Question

multiple select question select all that apply which statements about chemiosmosis are true? as hydrogen ions (protons) move through ion channels across the thylakoid membrane, atp is formed in the stroma. the chemical energy stored in atp and nadph is transferred to 3 - phosphoglycerate molecules to form high - energy molecules. six carbon dioxide molecules combine with six 5 - carbon compounds to form twelve 3 - carbon molecules called 3 - phosphoglycerate. the breakdown of water is essential for providing the protons (h⁺) necessary to drive atp synthesis during chemiosmosis. it is the mechanism by which atp is produced as a result of the flow of electrons down a concentration gradient.

Explanation:

Chemiosmosis involves the movement of hydrogen ions (protons) through ion - channels across a membrane to produce ATP. The breakdown of water provides protons for this process. In the light - dependent reactions of photosynthesis, as hydrogen ions move through ion channels across the thylakoid membrane, ATP is formed in the stroma. The transfer of chemical energy from ATP and NADPH to form high - energy molecules like 3 - phosphoglycerate is part of the Calvin cycle, not directly chemiosmosis. The combination of carbon dioxide with 5 - carbon compounds to form 3 - carbon molecules is also part of the Calvin cycle.

Answer:

As hydrogen ions (protons) move through ion channels across the thylakoid membrane, ATP is formed in the stroma.
It is the mechanism by which ATP is produced as a result of the flow of electrons down a concentration gradient.
The breakdown of water is essential for providing the protons (H⁺) necessary to drive ATP synthesis during chemiosmosis.