Item RH022001: Protein molecules speed up chemical reactions in cells and help other molecules get in and out of cells.

Which of the following are functions of protein molecules within cells?

  1. Protein molecules speed up chemical reactions in cells and help other molecules get in and out of cells.
  2. Protein molecules speed up chemical reactions in cells but do not help other molecules get in and out of cells.
  3. Protein molecules help other molecules get in and out of cells but do not speed up chemical reactions in cells.
  4. Protein molecules do not speed up chemical reactions in cells or help other molecules get in and out of cells.

Distribution of Responses

Chart showing distrubtion of responses for Item RH022001

Percent of students responding correctly

Overall34%
Grades 6–831%
Grades 9–1238%
Male32%
Female35%
Primary Language is English34%
Primary Language is not English36%

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