Membrane Transport & Tonicity

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and shrivel.

Front

What type of transport do aquaporins facilitate?

Back

Facilitated diffusion.

Front

If a cell is in a hypotonic solution, what does that mean?

Back

The cell has a lower concentration of solutes compared to the environment.

Front

What type of solution is a cell in if it experiences no net movement of water?

Back

Isotonic.

Front

What is facilitated diffusion?

Back

The process of diffusion in which molecules pass across the membrane through cell membrane channels with the concentration gradient.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

Define hypertonic solution.

Back

A solution with a higher concentration of solutes compared to another solution.

Front

Define hypotonic solution.

Back

A solution with a lower concentration of solutes compared to another solution.

Front

What is the role of the cell membrane in transport?

Back

It regulates the movement of substances in and out of the cell.

Front

What is active transport?

Back

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