Osmosis and Diffusion Quiz

What is osmosis?

• The movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution.

• The movement of particles from lower to higher concentration.

• The movement of solute particles from an area of higher concentration to lower concentration.

• The movement of particles that requires energy.

What is diffusion?

• The movement of particles from lower to higher concentration.

• The movement of particles that requires energy.

• The movement of particles from an area of higher concentration to lower concentration.

• The movement of solvent particles across a semipermeable membrane.

Which of the following is an example of osmosis?

• Red blood cells swelling up when exposed to fresh water.

• Movement of small molecules across a cell membrane.

• Adding a drop of food coloring to water.

• Perfume filling a whole room.

Which of the following is an example of diffusion?

• Red blood cells swelling up when exposed to fresh water.

• Soaking gummy candies in water.

• Adding a drop of food coloring to water.

• Plant root hairs taking up water.

What is a key difference between osmosis and diffusion?

• In osmosis, both solvent and solute particles move, while in diffusion, only solvent particles move.

• Osmosis always occurs across a semipermeable membrane, while diffusion can occur in any mixture.

• Osmosis requires energy, while diffusion does not.

• Osmosis occurs in gases, while diffusion occurs in liquids.

What is a similarity between osmosis and diffusion?

• Both processes act to equalize the concentration of a solution.

• Both processes require energy to occur.

• Both processes occur only across a semipermeable membrane.

• Both processes involve the movement of solvent particles only.

In osmosis, what type of particles move across the membrane?

• Both solute and solvent particles

• Solvent particles

• Solute particles

• Neither solute nor solvent particles

What happens to the concentration of solutions in osmosis?

• The concentration becomes more unequal.

• The concentration increases on one side only.

• The concentration remains the same.

• The concentration equalizes on both sides of the membrane.

Which process is considered a special case of the other?

• Diffusion is a special case of osmosis.

• Osmosis is a special case of diffusion.

• Neither is a special case of the other.

• Both are special cases of active transport.

What is required for osmosis to occur?

• A high concentration of solute

• Energy input

• A high concentration of solvent

• A semipermeable membrane