Science Struck
Science Struck: Osmosis vs. Diffusion: How Are They Different?
Explains the processes of osmosis and diffusion using labeled illustrations, discusses how they occur and gives examples.
CK-12 Foundation
Ck 12: Osmosis
[Free Registration/Login may be required to access all resource tools.] Tutorial defines osmosis and the difference between osmosis and diffusion. Students will learn how to distinguish solute from solvent and solution and the hypotonic,...
City University of New York
The World of Cells: Osmosis
This definition and explanation osmosis shows how water diffuses from regions where it is in high concentration to regions where it is in low concentration.
Concord Consortium
Concord Consortium: Stem Resources: Diffusion, Osmosis, and Active Transport
Have you ever wondered how important gases enter and leave cells? Take an up close tour of a pore in a cell membrane. Then explore diffusion, osmosis, and active transport through this collection of interactive models.
OpenStax
Open Stax: The Cell Membrane
Learn here about the structure and function of the cell membrane.
TeachEngineering
Teach Engineering: Cell Membrane Structure and Function
Young scholars learn about the different structures that comprise cell membranes, fulfilling part of the Research and Revise stages of the legacy cycle. Students view online animations of cell membrane dynamics (links provided). Then...
University of Hamburg
University of Hamburg: Membranes: Diffusion, Permeability, Osmosis, Turgor, Active and Passive Transport and Transport
This cellular biology page presents extensive detail on the chemical nature of the cell membrane. Using the Chime plug-in, students can manipulate and study models of the membrane.
Other
Biology Mad: Getting in and Out of Cells [Pdf]
This seven-page Biology course handout gives a detailed explanation, accompanied by many illustrations, of the various processes by which substances travel across the membranes of cells.
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...
The Association of the British Pharmaceutical Industry
Abpi: Cell Division and Cancer
A complete, student-led lesson on cell structure, cell division, and cancer growth. Students work their way through illustrations and animated tutorials, and answer review questions along the way. There is a self-checking quiz at the end...
Georgia Department of Education
Ga Virtual Learning: Anatomy and Physiology: Cells
In this module, students discover how each cell is organized to complete the function of producing and transporting proteins, and how cells relate to homeostasis of the body.
University of Arizona
The Biology Project: Cell Membrane Tutorial
Great overview of cell membranes. The site presents the information as a tutorial with multiple choice questions to guide the learner. Very well designed site on cell membranes.
Khan Academy
Khan Academy: Osmosis and Tonicity
Provides an overview of osmosis and tonicity and looks at how osmosis works, as well as the role it plays in the water balance of cells. Describes hypertonic, isotonic, and hypotonic solutions and their effect on cells.
CK-12 Foundation
Ck 12: Life Science: Diffusion
[Free Registration/Login may be required to access all resource tools.] The process of molecules moving from an area where there are lots of molecules to an area where there are fewer molecules is known as diffusion. The diffusion of...
Concord Consortium
Concord Consortium: Diffusion, Osmosis and Active Transport
This activity demonstrates diffusion, osmosis, and active transport through 12 interactive models. (Requires Java)
Bryn Mawr College
Serendip: Diffusion Across a Selectively Permeable Membrane
Brief text summary of what students learn in the Diffusion across a Selectively Permeable Membrane lab, along with links to download Student Handouts and Teacher Preparation Notes in PDF or Word formats. Main teaching points include...
Biology Pages
Kimball's Biology Pages: Transport Across Cell Membranes
This site has information on how facilitated diffusion of ions takes place through proteins, or assemblies of proteins, embedded in the plasma membrane. Includes a helpful diagram.
CK-12 Foundation
Ck 12: Biology: Cell Transport and Homeostasis Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on cell transport and homeostasis.
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
What2Learn
What2 Learn: Cell Transport Gcse Biology Revision
Two learning games, created by visitors to What2Learn, provide a fun way to learn how cells transport molecules.
BioMan Biology
Bio Man Biology: Cell Defense: The Plasma Membrane
Learn all about cell membranes in this game. Build a plasma membrane and learn about the membrane's functions. Identify the parts of a membrane, and learn how diffusion, transport, and osmosis work in cells. Includes a worksheet that can...
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...
City University of New York
Brooklyn College: Osmosis Interactive Activity
Great activity with clear background information. Try out the lab using osmosis to calculate molecular weight.
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.