Benchmark Review

Where will the water go?

• Into the cell
• Out of the cell
• Equally in & out - it's isotonic
• There is no water

A blood cell is placed into the jar, as seen. Where will the water go?

• Into the cell
• Out of the cell
• Equally in & out - it's isotonic
• The water is a lie

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

 If a cell containing 5% salt is placed into a glass of water with 20% salt, the water is _______ compared to the cell.

• hypertonic
• hypotonic
• isotonic

During osmosis

• water moves from high to low concentration
• large or oddly shaped molecules move across a cell membrane
• water moves when energy is used
• proteins are built

HYPO means...

• Low
• High
• Equal
• Fat

ISO means...

• Low
• A lot
• Equal
• Mammal

Why can't you drink salt water?

• It's hypertonic to your cells
• It's hypotonic to your cells
• It's isotonic to your cells
• It's paratonic to your cells

 In the given scenario what will happen?  An egg with a dissolved shell is placed in pure water for 48 hours.

• Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
• The egg will gain water and swell.
• The egg will lose water and shrink.

 An animal cell placed in a hypertonic (salty) solution will

• Stay the same
• Shrink- get smaller
• Swell- get bigger