Understanding Osmosis and Water Potential

What is the primary focus of the final presentation on transport through membranes?

• Facilitated diffusion

• Active transport

• Osmosis and water potential

• Diffusion of gases

How is osmosis different from general diffusion?

• It specifically involves water molecules.

• It occurs only in animal cells.

• It requires energy input.

• It involves the movement of solutes.

What is the role of a partially permeable membrane in osmosis?

• It allows only solute molecules to pass through.

• It allows only water molecules to pass through.

• It blocks all water molecules.

• It allows all molecules to pass through.

Which of the following best describes a solution with high water concentration?

• High solute concentration

• Low solute concentration

• Equal solute and solvent concentration

• No solute present

What does the Greek symbol Psi (Ψ) represent in the context of osmosis?

• Solute concentration

• Water potential

• Osmotic pressure

• Membrane permeability

What happens to water molecules at equilibrium during osmosis?

• They move only in one direction.

• They continue to move randomly without net gain.

• They stop moving completely.

• They increase in concentration on one side.

In a hypertonic solution, what happens to a plant cell?

• It remains unchanged.

• It bursts.

• It undergoes plasmolysis.

• It becomes turgid.

What is the effect of a hypotonic solution on an animal cell?

• The cell becomes crenated.

• The cell shrinks.

• The cell remains unchanged.

• The cell bursts.

Which term describes a solution with the same water potential inside and outside a cell?

• Hypotonic

• Isotonic

• Hypertonic

• Plasmolytic

What is the primary factor that determines the movement of water molecules by osmosis?

• Temperature

• Presence of solute

• Water potential gradient

• Membrane thickness