osmosis video Q

What is osmosis?

• The movement of solutes across a membrane.

• The movement of water across a semipermeable membrane.

• The movement of energy across a membrane.

• The movement of large molecules without assistance.

Which of the following best describes osmosis?

• It requires energy to move molecules.

• It is a type of active transport.

• It is a type of passive transport.

• It only occurs in artificial membranes.

In osmosis, water molecules tend to move towards an area with what characteristic?

• A lower concentration of solutes.

• A higher concentration of water.

• A higher concentration of solutes.

• An equal concentration of both water and solutes.

If side B has a higher solute concentration compared to side A, how is side B described relative to side A?

• Hypotonic

• Isotonic

• Hypertonic

• Equilibrium

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What happens to red blood cells if a person receives a hypothetical pure water IV pack?

• They shrink due to water loss.

• They remain stable.

• They swell and may burst.

• They actively pump out excess water.

Why is an isotonic solution typically administered when a person needs fluids intravenously?

• To cause red blood cells to shrink.

• To ensure red blood cells remain stable.

• To make red blood cells swell.

• To increase the solute concentration in the blood.

What would happen to a saltwater fish if it were placed in freshwater?

• Its cells would shrink due to water loss.

• Its cells would remain stable.

• Its cells would swell and it could die.

• It would adapt by increasing its internal salt concentration.

What effect does salt used on icy roads have on nearby plants?

• It helps the plants absorb more water.

• It makes the soil hypotonic, causing plant cells to swell.

• It makes the soil hypertonic, causing plants to lose water and dehydrate.

• It has no significant effect on plant water balance.