Diffusion & Osmosis Review

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What is an isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain molecules to pass through while blocking others.

Front

What is equilibrium in the context of diffusion?

Back

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

Front

What role do cell membranes play in osmosis?

Back

Cell membranes control the movement of water and solutes, allowing osmosis to occur.

Front

What is turgor pressure?

Back

Turgor pressure is the pressure exerted by water inside the central vacuole of a plant cell, helping maintain its shape.

Front

What is plasmolysis?

Back

Plasmolysis is the process where a plant cell loses water in a hypertonic solution, causing the cell membrane to pull away from the cell wall.