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 ME161001: A solution of sugar water is a source of food because the sugar in the solution is a source of energy and building materials.
A patient is in the hospital. The nurse put a needle into his arm and connected it to a solution of sugar dissolved in water. Is the sugar and water solution that enters his body a source of food for the patient?
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A. Yes, because food is anything that provides energy, and the water in the solution provides energy
B. Yes, because food is anything that is a source of both energy and building materials, and the sugar in the solution is a source of energy and building materials
C. No, because liquids cannot be food, and the solution is a liquid
D. No, because food has to enter the body through the mouth, and the sugar and water solution does not enter the patient’s body through the mouth
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1310 | 2409 | 54% |
| Grades | |||
| 6–8 | 642 | 1299 | 49% |
| 9–12 | 661 | 1101 | 60% |
| Gender | |||
| Male | 600 | 1140 | 53% |
| Female | 676 | 1205 | 56% |
| Primary Language | |||
| English | 1159 | 2108 | 55% |
| Other | 116 | 235 | 49% |