Diffusion and Osmosis REVIEW

Front

What is the process of taking material into the cell by infolding the cell membrane?

Back

Endocytosis

Front

What is the movement of molecules from an area of high concentration to an area of low concentration called?

Back

Diffusion

Front

What type of diffusion involves membrane proteins helping molecules across the membrane?

Back

Facilitated diffusion

Front

In diffusion, what happens to molecules? Do they spread out or condense?

Back

Spread out

Front

What does the direction of water movement across the cell membrane depend on?

Back

The concentration of free water molecules

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion refers to the movement of all types of molecules, while osmosis specifically refers to the movement of water.

Front

What is a selectively permeable membrane?

Back

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

Front

What is the role of membrane proteins in facilitated diffusion?

Back

They assist in the transport of molecules across the cell membrane.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and may shrink.