Science Assessment ~ Items ~ RH022003

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

Protein molecules help other molecules get in and out of cells, and speed up chemical reactions in cells.
Protein molecules help other molecules get in and out of cells, but do not speed up chemical reactions in cells.
Protein molecules speed up chemical reactions in cells, but do not help other molecules get in and out of cells.
Protein molecules do not help other molecules get in and out of cells, nor do they speed up chemical reactions in cells.

Details
Performance
NGSS

Topic
Correct Answer: A
Misconceptions

Distribution of Responses

Chart showing distrubtion of responses for Item 022003

Students Responding Correctly

Group	Correct	Total	Percent
Overall	465	1443	32%
Grades
6–8	313	975	32%
9–12	152	468	32%
Gender
Male	215	684	31%
Female	235	735	32%
Primary Language
English	405	1245	33%
Other	48	159	30%

View data table

NRC Framework: LS1.A Genes contain the instructions that code for the formation of molecules called proteins, which carry out most of the work of cells to perform the essential functions of life. That is, proteins provide structural components, serve as signaling devices, regulate cell activities, and determine the performance of cells through their enzymatic actions.