Item BF038004: Amino acids enter the circulatory system from the digestive system by passing through the walls of microscopically small blood vessels (capillaries), but proteins do not.

Which of the following statements is TRUE about the movement of proteins and amino acids from the digestive system to the circulatory system?

  1. Both proteins and amino acids enter the circulatory system by passing through the walls of microscopically small blood vessels (capillaries).
  2. Proteins enter the circulatory system by passing through the walls of microscopically small blood vessels (capillaries), but amino acids do not.
  3. Amino acids enter the circulatory system by passing through the walls of microscopically small blood vessels (capillaries), but proteins do not.
  4. Neither amino acids nor proteins enter the circulatory system from the digestive tract.
Distribution of Responses
Chart showing distrubtion of responses for Item BF038004
Students Responding Correctly
Group Correct Total Percent
Overall 1217 4751 26%
Grades
  6–8 668 2883 23%
  9–12 546 1850 30%
Gender
  Male594228626%
  Female599238425%
Primary Language
  English1092426626%
  Other9437425%

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