Cell Transport Study Guide

Front

What is the term for a solution with a higher concentration of solutes compared to another solution?

Back

Hypertonic

Front

What is the term for a solution with a lower concentration of solutes compared to another solution?

Back

Hypotonic

Front

What is the term for a solution with the same concentration of solutes as another solution?

Back

Isotonic

Front

What is diffusion?

Back

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

Front

What is facilitated diffusion?

Back

A type of passive transport that uses protein channels to help move substances across the cell membrane.

Front

What is the difference between diffusion and facilitated diffusion?

Back

Facilitated diffusion uses a protein 'helper' while diffusion does not.

Front

What is simple diffusion?

Back

The process by which small or nonpolar molecules pass through the cell membrane without the need for energy or assistance.

Front

What does semi-permeable mean?

Back

A property of cell membranes that allows certain substances to pass while blocking others.

Front

What is homeostasis?

Back

The maintenance of a relatively stable internal environment within an organism.

Front

What is osmosis?

Back

The diffusion of water across a semi-permeable membrane.