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A student places four identical cells into four different liquids. Cell WSaltier than the cellXLess salty than the cellYHigher concentration of water than the cellZLower concentration of water than the cell Which cells would take in water and swell?

A
cells X and Z
B
cells W and Y
C
cells X and Y
D
cells W and Z
2
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When will water move into a cell?

A
when the cell is moved from a pure water environment to a saltwater environment
B
when the concentration of water is greater outside the cell than inside the cell
C
when there are an equal number of water molecules inside and outside the cell
D
when the water inside the cell is warmer than the water outside the cell
3

Which statement describes the general process of diffusion?

A
Molecules move from inside of the cell to outside of the cell.
B
Molecules start out unevenly distributed and end up evenly distributed.
C
Molecules start out evenly distributed and end up unevenly distributed.
D
Molecules move from outside of the cell to inside of the cell.
4

The picture shows molecules in different sections of a container. The molecules can pass through the openings on each side of the middle section.

Question illustration
A
The molecules in the middle will move to the left section because the opening is lower on that side.
B
The molecules in the middle will move to the right section because it has fewer molecules than the middle section.
C
The molecules in the middle will move in both directions until they are evenly distributed.
D
The molecules on the left and right sides will move into the middle until they are all together.

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