Item EB037001: The energy of the system of reactants ATP + H2O is greater than the energy of the system of products ADP + Pi.
A chemical reaction that converts ATP to ADP and inorganic phosphate occurs in plants and animals. Which of the following graphs shows how the energy of the system of reactants compares to the energy of the system of products?
- Distribution of Responses
- Points Earned
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 36 | 139 | 26% |
| Grades | |||
| 6–8 | N/A | N/A | N/A |
| 9–12 | 33 | 124 | 27% |
| Gender | |||
| Male | 19 | 74 | 26% |
| Female | 10 | 47 | 21% |
| Primary Language | |||
| English | 31 | 120 | 26% |
| Other | 2 | 8 | 25% |
- Distribution of Responses
- Points Earned
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 42 | 149 | 28% |
| Grades | |||
| 6–8 | N/A | N/A | N/A |
| 9–12 | 39 | 130 | 30% |
| Gender | |||
| Male | 24 | 76 | 32% |
| Female | 15 | 54 | 28% |
| Primary Language | |||
| English | 36 | 125 | 29% |
| Other | 3 | 5 | 60% |
- Notes
- College Board, S.4.2: Energy Transfer, grades 9-12: • During cellular respiration, molecules from food — mainly sugars and fats — are converted in the presence of oxygen into carbon dioxide and water, and the chemical energy of that reaction is used to combine ADP and an inorganic phosphate to make ATP.