Understanding Osmosis

The video explains osmosis, a passive transport process where water moves across a membrane from high to low concentration. It highlights how water moves towards areas with higher solute concentration. The video uses diagrams to illustrate hypertonic and hypotonic conditions, showing how water moves into a hypertonic cell, causing it to swell, and out of a cell when the surrounding solution is hypertonic, causing the cell to shrivel.

What is the primary characteristic of osmosis?

• It requires energy to occur.

• It involves the movement of solutes.

• It is the movement of water across a membrane.

• It is a type of active transport.

In osmosis, water moves towards areas with:

• Equal solute and water concentration.

• Higher solute concentration.

• Lower solute concentration.

• Higher water concentration.

What does it mean if a solution is hypertonic?

• It has no solute concentration.

• It has an equal solute concentration.

• It has a higher solute concentration.

• It has a lower solute concentration.

What happens to a cell in a hypertonic solution?

• It bursts.

• It swells.

• It remains the same.

• It shrivels.

In a hypotonic solution, what is the net movement of water?

• No movement.

• Out of the cell.

• Equal movement in and out.

• Into the cell.