Curated OER
Passive Transport in and Out of Cells
Diagram showing how passive transport works across a cell membrane.
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...
University of Arizona
Prokaryotes, Eukaryotes, & Viruses
This tutorial compares prokaryotic and eukaryotic cellular organization and contrasts cells with viruses. Includes a practice quiz to test your knowledge.
Other
Miami University: Cellular Nature of Life?
Basic information about cells in an outline form. Gives good information in an abbreviated format.
Vision Learning
Visionlearning: Structure of Animal Cells
Interactive illustration displays the organelles of an animal cell and their functions.
CK-12 Foundation
Ck 12: Phospholipid Bilayers
[Free Registration/Login may be required to access all resource tools.] Tutorial describes the detailed structure and function of the plasma membrane, explains semipermeability, and summarizes the structure of a phospholipid.
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.
Curated OER
The World of Cells: Plasma Membrane
This is a basic description of the structure of cell membranes. Site provides colorful pictures of each membrane.
Curated OER
The World of Cells: Plasma Membrane
This is a basic description of the structure of cell membranes. Site provides colorful pictures of each membrane.
Curated OER
The World of Cells: Plasma Membrane
This is a basic description of the structure of cell membranes. Site provides colorful pictures of each membrane.
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.
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.
Science Education Resource Center at Carleton College
Serc: Observing Cell Division
In this activity, middle schoolers make microscopic observations of onion root tips, discuss them with classmates, then make detailed drawings that are shared.
BiologyWise
Biology Wise: Fluid Mosaic Model
The fluid mosaic model provides an explanation of the structure of biological membranes. It explains why a membrane can perform all of its functions, e.g., permeability and adhesion. This resource describes the main components of a cell...
BiologyWise
Biology Wise: Molecular Mechanism of Receptor Mediated Endocytosis
Endocytosis enables cells to absorb extracellular nutrients that are needed for their survival. In receptor-mediated endocytosis, a protein receptor on the cell membrane binds to a nutrient molecule and facilitates its absorption through...
That Quiz
That Quiz: Celulas
Free interactive practice tests aid in learning the Prokaryote Endomembrane system, Cell membrane, Plant cell, Animal cell and Neuron cell. Tests are timed and keep track of right and wrong answers.
BiologyWise
Biology Wise: Active Transport Process
Explains what happens during the active transport process where substances are moved across a cell membrane.
BiologyWise
Biology Wise: Nuclear Membrane Function
Describes the structure and functions of the membrane surrounding a cell nucleus.
CK-12 Foundation
Ck 12: Life Science: Cell Nucleus
[Free Registration/Login may be required to access all resource tools.] The nucleus is only found in eukaryotic cells. It contains most of the genetic material of the cell. It is surrounded by a double membrane, or nuclear envelope, that...
BiologyWise
Biology Wise: The Structure and Functions of a Cell Nucleus
The parts of a cell nucleus are described along with a list of the functions of a cell nucleus.
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."
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