Active and Passive Transport Review

Front

What is the term for a solution where the concentration of molecules is the SAME on both sides of a membrane?

Back

Isotonic

Front

What is diffusion?

Back

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

Front

What is osmosis?

Back

The diffusion of water across a membrane.

Front

Which structure controls the movement of materials in and out of a cell?

Back

Cell membrane

Front

When does diffusion in cells stop?

Back

When equilibrium is reached.

Front

What is a hypertonic solution?

Back

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

Front

What is a hypotonic solution?

Back

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

Front

What happens to a cell in a hypertonic solution?

Back

The cell shrinks as water moves out.

Front

What happens to a cell in a hypotonic solution?

Back

The cell swells as water moves in.

Front

What is facilitated diffusion?

Back

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