Osmosis

Osmosis

How cells regulate their water balance...

What would happen to the slug in this situation?

Which egg do you think just came out of sugar solution?

If this cell was in a lettuce leaf, which picture would represent "wilted lettuce?

This might be good to melt snow but is it good roadside plants or soft bodied animals like earthworms or slugs? Why or why not?

Multiple Choice

Which egg in slide 4 was most likely placed in a hypertonic solution?

• the egg with hard shell

• the large expanded egg

• the shrunken egg

• all of them

Multiple Choice

In slide 5 which situation would be healthiest for our cells if we given a IV bag through a vein in our arm with fluids?

• hypertonic

• hypotonic

• isotonic

• all would be healthy

Multiple Choice

In slide 3 what will happen to the slug?

• his cells will lose water and shrivel and he will die

• his cells will gain water, swell and die

• his cells will stay the same and salt will not affect him

• the salt will enter his body and help him

Multiple Choice

The slug in slide 3 is in the same situation as the plasmolyzed plant cell in slide 4.

• true

• false

Multiple Choice

For the rest of the questions make sure you watch the video!

What is a solute?

• a substance that does not dissolve in water

• a substance like sugar that does dissolve in water

• a liquid

• an acid or base

Multiple Choice

Water will generally move to

• an area of lower solute concentration

• an area higher water concentration

• an area with equal solute concentration

• an area higher solute concentration

Multiple Choice

In a U tube with a selectively permeable membrane and equal amounts of water on both sides, the net movement of water will be

• 1

• 10

• 0

• -1

Multiple Choice

In the U tube with salt on the right side the water will move more to side A which is on the left.

• true

• false

Multiple Choice

Hypotonic means there is a low solute concentration.

• true

• false

Multiple Choice

What would happen to most salt water fish in fresh water?

• their cells would shrink

• their cells are not affected

• their cells would swell and burst

Multiple Choice

What can influence osmosis?

• pressure potential

• solute potential

• water potential

• all of these

Poll

This video was

• helpful

• confusing

• neither helpful or confusing