Sophia Learning
Sophia: Facilitated Diffusion: Lesson 3
This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 3 of 9 in the series titled...
Sophia Learning
Sophia: Facilitated Diffusion: Lesson 4
This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 4 of 9 in the series titled...
Sophia Learning
Sophia: Facilitated Diffusion: Lesson 5
This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 5 of 9 in the series titled...
Sophia Learning
Sophia: Facilitated Diffusion: Lesson 1
This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 1 of 9 in the series titled...
Bio Topics
Bio Topics: How Substances Get Into (And Out Of) Cells
Understand the processes that allow substances to enter and exit a cell with this interactive online worksheet. Site discusses both diffusion and osmosis.
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.
City University of New York
The World of Cells: Endo and Exocytosis
The two processes are compared on a brief essay. Use this for an introduction or general review material.
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.
Khan Academy
Khan Academy: Ion Transport Defects Cause Cystic Fibrosis
Practice for the MCAT with these questions about Cystic Fibrosis.
Sumanas
Sumanas Inc: Discover Biology: Vesicle Budding and Fusing
Tutorial with animated illustrations showing how vesicles work to transport materials inside a cell and release them through the cell's membrane to the outside.
BiologyWise
Biology Wise: What Is Facilitated Diffusion?
Explains the process of facilitated diffusion which allows selective movement of materials across the cellular membrane.
Sophia Learning
Sophia: Endocytosis and Exocytosis: Lesson 3
This lesson introduces the processes of endocytosis and exocytosis, both processes which move larger molecules in and out of the cell, by way of vacuoles. It is 3 of 4 in the series titled "Endocytosis and Exocytosis."
Sophia Learning
Sophia: Endocytosis and Exocytosis: Lesson 4
This lesson introduces the processes of endocytosis and exocytosis, both processes which move larger molecules in and out of the cell, by way of vacuoles. It is 4 of 4 in the series titled "Endocytosis and Exocytosis."
Sophia Learning
Sophia: Endocytosis and Exocytosis: Lesson 1
This lesson introduces the processes of endocytosis and exocytosis, both processes which move larger molecules in and out of the cell, by way of vacuoles. It is 1 of 4 in the series titled "Endocytosis and Exocytosis."
Curated OER
Active Transport in and Out of Cells: Diagram
Diagram showing how active transport works across a cell membrane.
Sophia Learning
Sophia: Osmosis: Lesson 2
This lesson explains the process of osmosis. It explains how osmosis is a passive form of transport, used to move water molecules across a semi-permeable membrane, down their concentration gradient. It is 2 of 8 in the series titled...
Sophia Learning
Sophia: Osmosis: Lesson 1
This lesson explains the process of osmosis. It explains how osmosis is a passive form of transport, used to move water molecules across a semi-permeable membrane, down their concentration gradient. It is 1 of 8 in the series titled...
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...
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.
Other
Golgi Complex: Structure and Function
How do proteins move to the Golgi Complex? What types of secretion are controlled by the Golgi complex? How does Golgi complex regulate the insertion of plasma membrane proteins? Can proteins be transported back to the rough endoplasmic...
Other
Fundamentals of Reverse Osmosis
This site provides a basic definition of reverse osmosis, with a bit of a slant on why water pretreatment is important.
Other
Reverse Osmosis and Osmotic Pressure What They Are
This site gives a good explanation of osmosis and reverse osmosis. Also includes a scientific diagram of the process.
Curated OER
Reverse Osmosis and Osmotic Pressure What They Are
This site gives a good explanation of osmosis and reverse osmosis. Also includes a scientific diagram of the process.