Understanding Osmosis and Solutions

The video tutorial explains osmosis, the movement of water through a semi-permeable membrane from high to low concentration. It describes how cells react in different solutions: hypotonic (cell swells), isotonic (cell remains stable), and hypertonic (cell shrinks).

What is the process called when water moves through a selectively permeable membrane?

• Osmosis

• Evaporation

• Filtration

• Diffusion

In a hypotonic solution, what happens to a cell?

• It swells

• It shrinks

• It dissolves

• It stays the same size

What is the term for a solution where the water concentration is equal inside and outside the cell?

• Isotonic

• Supersonic

• Hypotonic

• Hypertonic

In an isotonic solution, how does water move across the cell membrane?

• Not at all

• Equally in both directions

• Only out of the cell

• Only into the cell

What happens to a cell in a hypertonic solution?

• It shrinks

• It stays the same size

• It bursts

• It swells

Which type of solution causes a cell to lose water?

• Hypotonic

• Isotonic

• Aqueous

• Hypertonic

What is the main factor that determines the movement of water in osmosis?

• Cell size

• Membrane thickness

• Temperature

• Water concentration gradient

Which solution type will cause no change in cell size?

• Hypotonic

• Isotonic

• Hypertonic

• None of the above

What is the purpose of the activity mentioned at the end of the video?

• To test water purity

• To measure cell size

• To show osmosis in action

• To demonstrate diffusion