Students were investigating the movement of water through a semi-permeable membrane. They made three model cells with a semi-permeable membrane and filled
each cell with a 6% salt solution. Each cell was then put into a beaker with the solt
concentration shown below.
in each cell
IN Sat
3% Salt
6% Salt
9% Salt
Images by Houston Secondary Science Curriculum
Assuming the cell membrane allowed water to pass through, but not salt, which
statement is correct?
A. The cell in Beaker 1 will grow as water enters though active transport,
B. The cell in Beaker 2 will shrink as water exits through osmosis.
C. The cell in Beaker 2 will grow as water enters though active transport.
D. The cell in Beaker 3 will shrink as water exits through osmosis.