Cell Transport Vocabulary

Front

What is Exocytosis?

Back

Cell transport in which waste or hormones are released through the cell membrane using energy.

Front

What is Facilitated Diffusion?

Back

Large molecules such as glucose move across the cell membrane through protein channels, without the use of energy.

Front

What does it mean that the cell membrane is selectively permeable?

Back

Certain things can enter the cell while others cannot.

Front

What is Diffusion?

Back

The movement of particles from high to low concentration.

Front

How does the Sodium Potassium Pump function?

Back

It moves sodium and potassium in opposite directions from a low concentration to high.

Front

What is Passive Transport?

Back

The movement of substances across a cell membrane without the use of energy.

Front

What is Active Transport?

Back

The movement of substances against their concentration gradient, requiring energy.

Front

What is Osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What are Protein Channels?

Back

Proteins that allow specific molecules to pass through the cell membrane.

Front

What is Bulk Transport?

Back

The process of moving large quantities of materials into or out of the cell.