Osmosis Video Review

What happens to plants near salted roads in winter?

• They turn into ice

• They often die

• They remain unaffected

• They grow faster

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What is osmosis?

• Movement of salt through a membrane

• Movement of water through a semi-permeable membrane

• Movement of sugar only

• A type of energy

What role does the semi-permeable membrane play in osmosis?

• It dissolves solutes

• It allows water to pass but not solutes

• It allows solutes to pass through

• It stops water movement

What is the significance of aquaporins in osmosis?

• They generate energy

• They allow larger quantities of water to pass through the membrane

• They prevent water movement

• They dissolve solutes

What does 'hypertonic' mean?

• Lower solute concentration

• Equal solute concentration

• Higher solute concentration

• No solute concentration

What is the result of placing a cell in a hypertonic solution?

• The cell divides

• The cell remains the same

• The cell shrinks

• The cell swells

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What happens to a plant cell in a hypotonic solution?

• It shrinks

• It bursts

• It swells

• It divides

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Why is pure water not used in IVs?

• It causes cells to shrink

• It causes cells to swell and possibly burst

• It has no effect on cells

• It is too expensive

Why is isotonic solution used in IVs?

• To make the IV cheaper

• To prevent cell swelling or shrinking

• To increase the solute concentration in blood

• To decrease the solute concentration in blood

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Why can't saltwater fish live in freshwater?

• Because of the food availability

• Because of osmosis

• Because of the light difference

• Because of the temperature difference