CK-12 Foundation
Ck 12: Biology: Exocytosis and Endocytosis
[Free Registration/Login may be required to access all resource tools.] Describes exocytosis and endocytosis.
CK-12 Foundation
Ck 12: Biology: Diffusion
[Free Registration/Login may be required to access all resource tools.] Describes passive transport and diffusion.
CK-12 Foundation
Ck 12: Biology: Membrane Proteins
[Free Registration/Login may be required to access all resource tools.] Describes proteins in the plasma membrane.
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...
CK-12 Foundation
Ck 12: Biology: Facilitated Diffusion
[Free Registration/Login may be required to access all resource tools.] Describes facilitated diffusion.
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.
Concord Consortium
Concord Consortium: Stem Resources: Diffusion
An activity to understand how diffusion is a result of random motion and collisions of particles. With the virtual labs, explore how a drop of food coloring into a glass spreads and how perfume diffuses at different temperatures and...
CK-12 Foundation
Ck 12: Life Science: Active Transport
[Free Registration/Login may be required to access all resource tools.] During active transport, molecules move from an area of low concentration to an area of high concentration. This is the opposite of diffusion, and these molecules...
CK-12 Foundation
Ck 12: Life Science: Passive Transport
[Free Registration/Login may be required to access all resource tools.] The cell membrane is semi-permeable. Sometimes molecules need the help of special transport proteins or an input of energy to help them move across it. When an input...
BiologyWise
Biology Wise: The Structure and Functions of the Cell Membrane
This resource describes the structure and functions of the cell membrane.
BiologyWise
Biology Wise: Peripheral and Integral Membrane Proteins
Discusses the structure of a cell membrane, the role of membrane proteins, and the differences between integral membrane proteins and peripheral membrane proteins as regards to their functions, location, and relationship with the...
BiologyWise
Biology Wise: Carrier Proteins vs. Channel Proteins
Carrier proteins and channel proteins are both involved in cell transport across the plasma membrane. Their functions, similarities, and differences are described in this resource. Includes examples for active, facilitated, and passive...
Concord Consortium
Concord Consortium: Diffusion, Osmosis and Active Transport
This activity demonstrates diffusion, osmosis, and active transport through 12 interactive models. (Requires Java)
Other
Ed Tech/osmosis
An online tutorial that takes you through an exploration of the processes of osmosis and osmotic pressure.
CK-12 Foundation
Ck 12: Life Science: Cell Transport
[Free Registration/Login may be required to access all resource tools.] Cells are found in all different types of environments, and these environments are constantly changing. For example, one-celled organisms, like bacteria, can be...
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.
Khan Academy
Khan Academy: Ap Biology: Cell Structure and Function: Facilitated Diffusion
Practice exercise on facilitated diffusion.
Khan Academy
Khan Academy: Transport Across a Cell Membrane Questions
This is an eleven-question quiz pertaining to transport across a cell membrane.
Khan Academy
Khan Academy: Passive Transport & Active Transport Across Cell Membrane Article
The cell membrane is one of the great multi-taskers of biology. It provides structure for the cell, protects cytosolic contents from the environment, and allows cells to act as specialized units. Learn how the membrane functions to...
CK-12 Foundation
Ck 12: Life Science: 2.9 Cell Transport
Explore the process of cell transport across a cell membrane.
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
Johnson County Community College: Cell Membrane and Transport Mechanisms
Brief overview of the transport mechanisms involved in cell 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.