Osmosis and Tonicity Quiz

What is the primary function of a semi-permeable membrane in osmosis?

• To allow only solute molecules to pass

• To allow only solvent molecules to pass

• To block all molecules from passing

• To allow all molecules to pass through

How do cells react when placed in a hypotonic solution?

• They become spiky in appearance

• They shrink due to water loss

• They remain unchanged

• They swell and may burst

What is the term used to describe the shrinking of cells in a hypertonic solution?

• End osmosis

• Plasmolysis

• Crenation

• Ex-osmosis

Which of the following materials is NOT required for the red blood cell experiment?

• Rubbing alcohol

• Glass slides

• Compound light microscope

• Bunsen burner

What observation is made when red blood cells are placed in an isotonic solution?

• They retain their normal shape

• They shrink and become spiky

• They swell and burst

• They dissolve completely