Cell Transport and Homeostasis

Front

What does selectively-permeable mean?

Back

The cell membrane regulates what passes in and out of the cell.

Front

What is osmosis?

Back

The movement of water across a selectively permeable membrane from an area of higher water concentration to an area of lower water concentration.

Front

What is active transport?

Back

The process of moving substances against their concentration gradient, requiring energy (ATP).

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a membrane via specific transmembrane proteins.

Front

What is simple diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration without the need for energy.

Front

What is a hypertonic solution?

Back

A solution with a higher concentration of solutes compared to another solution, causing water to move out of cells.

Front

What is a hypotonic solution?

Back

A solution with a lower concentration of solutes compared to another solution, causing water to move into cells.

Front

What is an isotonic solution?

Back

A solution with the same concentration of solutes as another solution, resulting in no net movement of water.

Front

What role does ATP play in cell transport?

Back

ATP provides the energy required for active transport processes.

Front

What is the function of the cell membrane?

Back

To protect the cell and regulate the movement of substances in and out.