Passive Transport

Front

What does permeable mean?

Back

Things can pass through.

Front

Which way do water molecules move during osmosis?

Back

Out of the cell, so the cell shrinks.

Front

What is diffusion?

Back

When molecules move from a high concentration to a low concentration.

Front

What is selective permeability?

Back

The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.

Front

What is osmosis?

Back

The movement of water molecules across a selectively permeable membrane.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of solute molecules, while osmosis is the movement of water molecules.

Front

What factors affect the rate of diffusion?

Back

Temperature, concentration gradient, and the size of the molecules.

Front

What is a concentration gradient?

Back

A difference in the concentration of a substance across a space.

Front

What happens to a cell in a hypertonic solution?

Back

The cell shrinks as water moves out of it.

Front

What happens to a cell in a hypotonic solution?

Back

The cell swells as water moves into it.