Osmosis and Diffusion

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What happens to a cell in a salty environment?

Back

The cell will shrink due to the loss of water as it moves out of the cell to balance the solute concentration.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution, such as Tang powder in water.

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What is the role of a selectively permeable membrane?

Back

A selectively permeable membrane allows certain substances to pass through while blocking others, facilitating processes like osmosis and diffusion.

Front

What is the difference between osmosis and diffusion?

Back

Osmosis specifically refers to the movement of water, while diffusion refers to the movement of any type of particles.

Front

What occurs when a cell is placed in pure water?

Back

The cell may expand and potentially burst as water moves into the cell due to a higher concentration of solutes inside the cell.

Front

What is equilibrium in the context of diffusion?

Back

Equilibrium is the state reached when the concentration of particles is equal throughout a space, and there is no net movement of particles.

Front

How does temperature affect the rate of diffusion?

Back

Higher temperatures increase the energy and movement of particles, leading to a faster rate of diffusion.

Front

What is hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, causing cells to lose water and shrink.