MEGA
Energy in Biology
Cellular respiration is a chemical process in which the bonds between atoms of food molecules and oxygen molecul…
Item EB055001: During photosynthesis, more energy is required to break bonds between molecules of CO2 and H2O than is released as bonds form between molecules of C6H12O6 and O2.
Photosynthesis is a chemical reaction that occurs in a plant as the sun shines on it. Which of the following models illustrates the energy changes that occur during photosynthesis?
- Distribution of Responses
- Points Earned
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 26 | 124 | 21% |
| Grades | |||
| 6–8 | N/A | N/A | N/A |
| 9–12 | 24 | 105 | 23% |
| Gender | |||
| Male | 13 | 60 | 22% |
| Female | 12 | 49 | 24% |
| Primary Language | |||
| English | 22 | 95 | 23% |
| Other | 2 | 6 | 33% |
- Distribution of Responses
- Points Earned
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 44 | 146 | 30% |
| Grades | |||
| 6–8 | N/A | N/A | N/A |
| 9–12 | 38 | 134 | 28% |
| Gender | |||
| Male | 27 | 73 | 37% |
| Female | 12 | 59 | 20% |
| Primary Language | |||
| English | 37 | 122 | 30% |
| Other | 0 | 10 | 0% |
- Disciplinary Core Ideas
- PS1.A A stable molecule has less energy than the same set of atoms separated; one must provide at least this energy in order to take the molecule apart.
LS1.C The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.