BBC
Bbc: Gcse Bitesize: Supplying the Cell
For an organism to function, substances must move into and out of cells. Three processes contribute to this movement - diffusion, osmosis and active transport. Diffusion is the process by which useful materials and waste products move in...
Georgia State University
Georgia State University: Hyper Physics: Membrane Transport
This technical site provides an in depth look at membrane transport by clearly explaining the processes of diffusion and osmosis. Links are provided to clarify terminology.
Estrella Mountain Community College
Online Biology Book: Transport in and Out of Cells
This resource is an article about the cell membrane, and its role in water and solute movement in and out of the cell.
The Association of the British Pharmaceutical Industry
Abpi: Medicine Box Challenge
Students learn about how medicines work in the body, and find out some information about dosing and packaging. The challenge is for student teams must produce a number of boxes to be used as packaging for a new medicine. Then they must...
Department of Defense
Do Dea: Biology: Unit 3: Cell Structure
In this third unit of a Biology course, students learn about cells and cell structure. They compare prokaryotic and eukaryotic cells and learn about the specialized structures in a cell and what their functions are. They will also learn...
OpenStax
Open Stax: Physics: Molecular Transport Phenomena
Learn about diffusion, osmosis, dialysis, and active transport in this college textbook. Section also includes how to calculate the rate of diffusion. Section includes problems and questions for the students to answer to ensure...
OpenStax
Open Stax: The Cell Membrane
Learn here about the structure and function of the cell membrane.
Carnegie Mellon University
Chem Collective: Osmotic Pressure
When a balloon is filled to near bursting with SF6 is left in air, it will often burst after a period of time. This is because the smaller N2 molecules diffuses into the balloon while the larger SF6 molecules remains causing the balloon...
Sophia Learning
Sophia: Passive Transport: Lesson 1
This lesson introduces the process of passive transport, explaining that it is a form of transport that does not require energy, and moves molecules down their concentration gradient. It is 1 of 4 in the series titled "Passive Transport."
Kenyon College
Kenyon College: Passive Transport Versus Active Transport
A brief but clear explanation of passive and active transport. Examples are provided to further enhance clarity of the concepts.
Utah State Office of Education
Utah Science: Introducing Cells!
Get to know cells, what they create, how to identify them, and how to tell whether they belong to a plant or an animal. Several activities
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