Item BF056006: Capillaries allow small molecules like amino acids to pass through their walls but not large molecules like proteins. Molecules do not pass through the walls of large blood vessels.

Which of the following is TRUE about the kinds of molecules that can pass through the walls of microscopically small blood vessels (capillaries) and through the walls of larger blood vessels such as veins and arteries?

  1. Capillaries allow both small molecules like amino acids and large molecules like proteins to pass through their walls.
  2. Capillaries allow small molecules like amino acids to pass through their walls but not large molecules like proteins.
  3. Arteries and veins allow both small molecules like amino acids and large molecules like proteins to pass through their walls.
  4. Arteries and veins allow small molecules like amino acids to pass through their walls but not large molecules like proteins.

 

Distribution of Responses

Chart showing distrubtion of responses for Item BF056006

Percent of students responding correctly

Overall36%
Grades 6–835%
Grades 9–1238%
Male38%
Female35%
Primary Language is English37%
Primary Language is not English32%

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