Cellular Transport

Front

What is diffusion?

Back

The movement of particles through the cell membrane from areas of high concentration to areas of low concentration.

Front

What is facilitated diffusion?

Back

A process where particles that are too large to enter the membrane use channel proteins to cross, without the use of energy.

Front

What does isotonic mean?

Back

A state where the concentration of solutes is equal inside and outside the cell.

Front

What happens to a cell in an isotonic solution?

Back

The cell will stay the same size because the concentration of water and solutes is equal.

Front

What is active transport?

Back

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

Front

What is passive transport?

Back

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

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is a hypotonic solution?

Back

A solution with a lower concentration of solutes compared to the inside of the cell, causing the cell to swell.

Front

What is a hypertonic solution?

Back

A solution with a higher concentration of solutes compared to the inside of the cell, causing the cell to shrink.

Front

What role do channel proteins play in cellular transport?

Back

They assist in the facilitated diffusion of larger particles across the cell membrane.