Understanding Osmosis

What is osmosis?

• The movement of water through a semi-permeable membrane

• The movement of salt through a semi-permeable membrane

• The movement of water from low solute concentration to high solute concentration

• The movement of water from high solute concentration to low solute concentration

Why would it be deadly to give someone an IV of pure water?

• Pure water can cause dehydration

• Pure water can cause the cells to burst

• Pure water can cause the blood to clot

• Pure water can cause an allergic reaction

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NGSS.MS-LS1-2

Why would a saltwater fish placed in freshwater experience major problems?

• The fish will become dehydrated

• The fish will experience a decrease in solute concentration

• The fish will experience an increase in solute concentration

• The fish will become hyperactive

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NGSS.MS-LS2-1

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What is the main characteristic of osmosis?

• It requires energy

• It involves the movement of salt molecules

• It involves the movement of water molecules

• It requires a semi-permeable membrane

What does it mean for a solution to be hypertonic?

• It has a high solute concentration

• It has a low solute concentration

• It has an equal solute concentration

• It has a high water concentration

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NGSS.MS-PS1-2

What does it mean for a solution to be hypotonic?

• It has a high solute concentration

• It has a low solute concentration

• It has an equal solute concentration

• It has a high water concentration

What happens when pure water is placed in an IV?

• The blood cells will burst

• The blood cells will shrink

• The blood cells will remain the same

• The blood cells will multiply

What type of solution is typically used in IV fluids?

• Hypertonic solution

• Hypotonic solution

• Isotonic solution

• Hyperactive solution

What happens to plants near salted roadsides?

• They absorb more water

• They release more water

• They grow taller

• They die

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NGSS.MS-LS1-5

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What happens to slugs when salt is placed on them?

• They become hyperactive

• They dehydrate and die

• They grow larger

• They multiply rapidly

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NGSS.MS-LS1-5

NGSS.MS-LS2-4