Cell Membrane and Transport Mechanisms

Front

What is Passive Transport?

Back

Movement of particles from high to low concentration without the use of energy.

Front

What is Active Transport?

Back

Movement of particles from low to high concentration using energy.

Front

What is Osmosis?

Back

The movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What happens to water when a cell is placed in a hypertonic solution?

Back

Water will flow out of the cell.

Front

What happens to water when a cell is placed in a hypotonic solution?

Back

Water will flow into the cell.

Front

What is Endocytosis?

Back

The process by which cells take in substances by engulfing them in a membrane.

Front

What is Exocytosis?

Back

The process by which cells expel materials in vesicles that fuse with the cell membrane.

Front

What is the Cell Membrane?

Back

A biological membrane that separates and protects the interior of all cells from the outside environment.

Front

What are Lipids?

Back

Molecules that are insoluble in water and make up the cell membrane.

Front

What is a Selectively Permeable Membrane?

Back

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