Cell Transport

Front

What does 'high concentration area' mean?

Back

Tightly packed together.

Front

What does selectively-permeable mean?

Back

Allow certain things to enter and leave the cell.

Front

The diffusion of particles through the cell membrane from high to low concentration is called ....

Back

Passive transport.

Front

Osmosis is the movement of _____ across a membrane.

Back

Water.

Front

If a gummy bear is placed in salt water, the mass of the gummy bear will decrease because water will move out of the gummy bear. What process does this represent?

Back

Osmosis.

Front

What is the main function of the cell membrane?

Back

To protect the cell and control what enters and leaves.

Front

Define diffusion.

Back

The movement of particles from an area of high concentration to an area of low concentration.

Front

What is active transport?

Back

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

Front

What is the role of water in osmosis?

Back

Water moves to balance concentration differences across a membrane.

Front

What happens to a cell in a hypertonic solution?

Back

The cell shrinks as water moves out.