Osmosis

Water molecules can pass through a cell membrane in which direction?

• only going in

• only going out

• in either direction

Tags

NGSS.MS-LS1-2

If there are more water molecules outside the cell membrane then....

• water will LEAVE the cell and the cell shrinks.

• water will ENTER the cell and the cell swells up.

Tags

NGSS.MS-LS1-2

If the solution outside the cell has the same amount of water molecules as inside the cell, then the amount of water molecules....

• increases on the inside.

• decreases on the inside and flows to the outside.

• stays the same (equal on inside and outside).

Tags

NGSS.MS-LS1-2

Water crosses the cell membrane in both directions so...

• the amount going in is the SAME as the amount going OUT

• the amount going in is MORE than the amount going OUT.

• the amount going in is LESS than the amount going OUT.

When water molecules are equal on both sides (equilibrium), the cell size....

• increases

• decreases

• stays the same

When there are FEWER water molecules on the OUTSIDE of the cell than inside, the cell....

• gains water and increases in size.

• loses water and decreases in size.

• maintains equilibrium and stays the same size.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

When there are MORE water molecules on the OUTSIDE of the cell than inside, the cell....

• gains water and increases in size.

• loses water and decreases in size.

• maintains equilibrium and stays the same size.

Depending on the amount of water in a solution, cells will

• take in water

• stay the same

• lose water

• all choices (depends on the amount of water)

Tags

NGSS.MS-LS1-2

NGSS.MS-LS2-1

If animal cells take in too much water they can...

• become bigger and control and organism.

• burst!

• shrink!

Animal cells are surrounded by a solution that has the same amount of as water inside the cell so....

• they are balanced and don't explode.

• they can explode and make new cells.

• they can become organisms.

Tags

NGSS.MS-LS1-3