Cell Transport

Front

What do diffusion, osmosis, and facilitated diffusion have in common?

Back

They move materials DOWN the concentration gradient.

Front

What is the direction of salt movement if the concentration is higher outside the cell?

Back

Salt will move INTO the cell.

Front

Which direction will solute (dots) move without the use of energy?

Back

Out of the cell.

Front

What is the definition of OSMOSIS?

Back

Diffusion of water through a selectively permeable membrane.

Front

What is facilitated diffusion?

Back

The movement of materials into and out of the cell with the use of proteins but no energy.

Front

What is the main difference between diffusion and osmosis?

Back

Diffusion refers to the movement of solutes, 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 ATP in active transport?

Back

ATP provides the energy needed to move substances against their concentration gradient.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and shrink.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will gain water and may swell or burst.