6.1: Process Animation: Active Transport, Discovery Biology 3rd Edition, W.W. Norton Company, Animation on active transport.

Active transport Wikipedia.org Article with one illustration illustrating the movement of particles across a membrane against a concentration gradient.

Active Transport McGraw-Hill Higher Education Click on "How to use this Exploration" for instructions and then on the "Skip Into" tab to actually start the exercise.

Active Transport, Written by tutor Diane G., Wyzant.com, All-text article.

Active transport, By Paul Decelles, The Virtually Biology Course, Active transport animation and text.

Active Transport BiologyReference.com Explanation of what active transport is and its types.

Active Transport W.H. Freeman Publishers This page has an introduction, animation, conclusion, and quiz on how a cell uses energy to move a substance across a membrane from a lower concentration t

Active Transport Animation Biology 1111 Northland Community College AP or college level animation.

ADP vs. ATP Pearson Prentice Hall Activity labeling a drawing comparing ADP and ATP.

Animation: How the Sodium Potassium Pump Works, Human Anatomy Student Edition, McGraw-Hill Higher Education, Watch a narrated animation then take the quiz.

Cell Membranes: Active Transport, College-Cram.com, Text and a 0:22 video.

Chapter 2: Getting in and out of cells Provided by Ian White Biologymad.com Wonderful illustrations that help explain diffusion, osmosis, and active transport.

Concept 5: Mechanisms of Active Transport, Bio Coach Activity, Pearson Publishers, Includes a review, practice, and quiz.

Diffusion, Osmosis & Active Transport Lecture, Science Prof Online, Online resource for college level biology course; has learning objectives, PP lectures, class notes, review questions, practice

Sodium Potassium Pump By Khan Academy Video length: 13:53. 'How a sodium potassium pump can maintain a voltage gradient across a cell or neuron's membrane'

Sodium-potassium pump, By David Darling, The Encyclopedia of Science, Visit the website for a brief explanation, illustration and to learn more.

Sodium-potassium pump Animation, Brooks/Cole, Great animation!!

Transport Processes Requiring ATP By Barbara Liang Wisconsin-Online "In this animated object, students observe how ATP energy is used to move substances across the cell membrane from an area