{"answerArea": {"calculator": false, "chi2Table": false, "periodicTable": false, "tTable": false, "zTable": false}, "hints": [{"content": "1. Reduced electron carriers like NADH and FADH2 from other steps of cellular respiration transfer their electrons to molecules near the beginning of the electron transport chain (ETC).\n\n2. Some of the released energy is used to pump H+ across the mitochondrial membrane and creates an electrochemical gradient.", "images": {}, "replace": false, "widgets": {}}, {"content": "3. Electrons are transferred to oxygen, which splits in half and takes up H+ to form water.\n\n4. Finally, H+ ions flow down their gradient and back into the mitochondrial matrix passing through an enzyme called ATP synthase, which makes ATP.\n\n", "images": {}, "replace": false, "widgets": {}}, {"content": "The correct answer is\n\n[[☃ image 1]]\n", "images": {}, "replace": false, "widgets": {"image 1": {"alignment": "block", "graded": true, "options": {"alt": "* Electrons are transferred to molecules in the beginning of the electron transport chain.\n\n* H+ ions are pumped across the mitochondrial membrane to establish an electrochemical gradient.\n\n* Electrons are transferred to oxygen, causing it to split and take up H+ ions, which forms water.\n\n* H+ ions flow down the gradient to generate ATP. ", "backgroundImage": {"height": 310, "url": "${☣ LOCALPATH}/images/7c26380f12255e7812d396e4ad310081.png", "width": 480}, "box": [480, 310], "caption": "", "labels": [], "range": [[0, 10], [0, 10]], "static": false, "title": ""}, "static": false, "type": "image", "version": {"major": 0, "minor": 0}}}}], "itemDataVersion": {"major": 0, "minor": 1}, "question": {"content": "Oxidative phosphorylation is the final step in cellular respiration.\n\n**List the following steps of oxidative phosphorylation from beginning (top) to end (bottom).**\n\n[[☃ sorter 1]]", "images": {}, "widgets": {"sorter 1": {"alignment": "default", "graded": true, "options": {"correct": ["Electrons are transferred to molecules in the beginning of the electron transport chain.", "H+ ions are pumped across the mitochondrial membrane to establish an electrochemical gradient.", "Electrons are transferred to oxygen, causing it to split and take up H+ ions, which forms water.", "H+ ions flow down the gradient to generate ATP. "], "layout": "vertical", "padding": true}, "static": false, "type": "sorter", "version": {"major": 0, "minor": 0}}}}}