Original Project
Human Body Systems
Oxygen, carbon dioxide, and molecules from food are carried to or from cells of the body by means of the circula…
Item BF018005: Small molecules like amino acids can pass through capillary walls but large molecules like proteins cannot.
What molecules can pass through the walls of microscopically small blood vessels (capillaries)?
- Both small molecules like amino acids and large molecules like proteins can pass through capillary walls.
- Small molecules like amino acids can pass through capillary walls, but large molecules like proteins cannot.
- Large molecules like proteins can pass through capillary walls, but small molecules like amino acids cannot.
- Neither large molecules like proteins nor small molecules like amino acids can pass through capillary walls.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 732 | 1558 | 47% |
| Grades | |||
| 6–8 | 423 | 1000 | 42% |
| 9–12 | 307 | 554 | 55% |
| Gender | |||
| Male | 347 | 745 | 47% |
| Female | 371 | 782 | 47% |
| Primary Language | |||
| English | 673 | 1394 | 48% |
| Other | 44 | 134 | 33% |