Diffusion through a Membrane State Lab

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What role does the cell membrane play in diffusion?

Back

The cell membrane is selectively permeable, allowing certain substances to pass through while blocking others.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water enters 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 leaves the cell, causing it to shrink.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What is an isotonic solution?

Back

An isotonic solution has the same concentration of solutes as the cell's interior, resulting in no net movement of water.

Front

Why is it dangerous to inject pure water into the bloodstream?

Back

Injecting pure water can cause red blood cells to swell and burst due to osmosis.

Front

What is the function of an indicator in a diffusion experiment?

Back

An indicator is used to visually demonstrate the presence of a substance, often changing color when a specific condition is met.

Front

What is the significance of small particles passing through the cell membrane?

Back

Small particles can pass through the cell membrane via diffusion, affecting cellular processes.

Front

What is the effect of saltwater on human cells?

Back

Drinking saltwater can lead to dehydration as cells shrink due to water leaving the cells.