{"answerArea": {"calculator": false, "chi2Table": false, "periodicTable": false, "tTable": false, "zTable": false}, "hints": [{"content": "Chemiosmosis is the process of making ATP from ATP synthase and energy stored in the proton gradient. The proton gradient is generated separately as part of the electron transport chain (ETC). \n\nThe ETC regenerates electron carriers like NADH and FADH2 by oxidizing them. As electrons are passed down the chain, some energy is used to pump H+ ions across the membrane, creating the proton gradient used in chemiosmosis.\n\nAs these H+ ions flow down their gradient, they pass through an enzyme called ATP synthase, which uses the flow of protons to make ATP. This process is chemiosmosis.\n", "images": {}, "replace": false, "widgets": {}}, {"content": "The correct answer is\n\nThe energy from a proton gradient is used to make ATP.", "images": {}, "replace": false, "widgets": {}}], "itemDataVersion": {"major": 0, "minor": 1}, "question": {"content": "Chemiosmosis is a part of oxidative phosphorylation, the final step in cellular respiration.\n\n**Which of the following is true regarding chemiosmosis?**\n\n[[☃ radio 1]]", "images": {}, "widgets": {"radio 1": {"alignment": "default", "graded": true, "options": {"choices": [{"clue": "The proton gradient created during the electron transport chain (ETC) is then used for chemiosmosis. As H+ ions flow down their gradient,  they pass through an enzyme called ATP synthase, which uses the flow of protons to make ATP.", "content": "The energy from a proton gradient is used to make ATP.", "correct": true}, {"clue": "The electron transport chain (ETC) regenerates electron carriers like NADH and FADH2, while chemiosmosis uses the energy stored in the proton gradient, created by the ETC, to make ATP.", "content": "Chemiosmosis regenerates electron carriers like NADH and FADH2.", "correct": false}, {"clue": "It is actually the flow of electrons through the ETC that generates a proton gradient, leading to ATP synthesis, not the other way around.", "content": "ATP synthesis creates a proton gradient that causes electron flow through an electron transport chain (ETC).", "correct": false, "isNoneOfTheAbove": false}, {"clue": "A proton gradient across the membrane drives ATP synthesis using the enzyme ATP synthase.", "content": "A temperature gradient drives ATP synthesis.", "correct": false, "isNoneOfTheAbove": false}], "countChoices": false, "deselectEnabled": false, "displayCount": null, "hasNoneOfTheAbove": false, "multipleSelect": false, "randomize": false}, "static": false, "type": "radio", "version": {"major": 1, "minor": 0}}}}}