Original Project
Matter and Energy in Living Systems
All organisms need food as a source of molecules that provide chemical energy and building materials.
Item BF066003: During diegstion, the protein molecules in the food we eat are broken down into amino acids.
During digestion, what happens to protein molecules in the food we eat?
- They are broken down into amino acids.
- They are broken down into simple sugars.
- They are broken down into carbon dioxide and water.
- Nothing happens to them. Other molecules are broken down during digestion but not protein molecules.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1377 | 3167 | 44% |
| Grades | |||
| 6–8 | 719 | 1860 | 39% |
| 9–12 | 654 | 1292 | 51% |
| Gender | |||
| Male | 686 | 1532 | 45% |
| Female | 671 | 1585 | 42% |
| Primary Language | |||
| English | 1253 | 2851 | 44% |
| Other | 90 | 236 | 38% |
- Disciplinary Core Ideas
- LS1.C Within individual organisms, food moves through a series of chemical reactions in which it is broken down and rearranged to form new molecules, to support growth, or to release energy.
- NRC Framework
- HS LS1.C The sugar molecules...contain carbon, hydrogen, and oxygen; their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins or DNA), used for example to form new cells.