Item CE093002: Small molecules enter the cell through the cell membrane.

What is TRUE about small molecules such as amino acids, fatty acids, and simple sugars entering a cell?

  1. Small molecules cannot enter a cell because the interior of a cell is solid.
  2. Small molecules cannot enter a cell because the interior of a cell is already filled with air.
  3. Small molecules cannot enter a cell because the interior of a cell is already filled with water.
  4. Small molecules enter a cell by passing through a membrane that covers cells.

Distribution of Responses

Chart showing distrubtion of responses for Item CE093002

Percent of students responding correctly

Overall67%
Grades 6–864%
Grades 9–1272%
Male65%
Female69%
Primary Language is English67%
Primary Language is not English64%

View data table