University of Arizona
Cell Signaling
Superior site for information on cell signaling. Information provided as a tutorial with multiple choice questions to guide the learner. The site has lots of images and diagrams.
University of Oxford (UK)
Univeristy of Oxford: Self Sustaining Chemical Systems: Living Cells
36-page tutorial takes a look at the organization of living cells.
Vision Learning
Visionlearning: Cell Biology: Membrane Bound Organelles
Evidence in support of endosymbiosis to show the evolution of organelles within cells.
American Association for the Advancement of Science
Aaas: Project 2061: Topic: Cells
[Free Registration/Login Required] Create a science test that checks for student understanding in science, for common misconceptions, as well as for correct ideas. This is a list of key ideas related to Cells. For each key idea, you will...
CK-12 Foundation
Ck 12: Prokaryotic and Eukaryotic Cells
[Free Registration/Login may be required to access all resource tools.] All cells are one of two types, prokaryotic or eukaryotic. Students will learn the structural differences between the two cells, be able to give examples, and...
CK-12 Foundation
Ck 12: Episd: Prokaryotic and Eukaryotic Cells
[Free Registration/Login may be required to access all resource tools.] Examine prokaryotic and eukaryotic cells to be able to distinguish between the two as well as be able to give examples of both cell types.
Georgia Department of Education
Ga Virtual Learning: Biology: Taxonomy
In this multi-media module students derive the relationship between single-celled and multi-celled organisms and the increasing complexity of systems.
Vision Learning
Vision Learning: Cells: Discovery and Basic Structure
This module focuses on cell structure and how the organelles function together to form the smallest unit of life. The cell theory is also discussed along with the basics features of the cell. Site also includes an interactive practice...
Khan Academy
Khan Academy: Cell Cell Junctions
Learn about the different types of intercellular junctions, including plasmodesmata, tight junctions, gap junctions, and desmosomes.
Khan Academy
Khan Academy: Introduction to Cell Signaling
This article examines the basic principles of how cells communicate with one another using different kinds of short- and long-range signaling.
Khan Academy
Khan Academy: Ligands & Receptors
Article looks at different types of receptors and ligands, seeing how they interact to turn information from outside the cell into a change inside the cell.
Khan Academy
Khan Academy: Signal Relay Pathways
Learn how signals are relayed inside a cell starting from the cell membrane receptor. Look at the general characteristics of intracellular signal transduction pathways, as well as some relay mechanisms commonly used in these pathways.
Khan Academy
Khan Academy: Response to a Signal
Article takes a look at examples of the different ways cells can change their behavior in response to a signal at both the "micro" and "macro" levels.
Khan Academy
Khan Academy: Cell Cycle Checkpoints
Learn how cells use checkpoints to regulate the cell cycle. This article provides an overview of cell cycle control, outlining the factors that influence a cell's decision to pause or progress at each checkpoint.
Khan Academy
Khan Academy: Apoptosis
Resource explains apoptosis (programmed cell death) and how it is different from necrosis (cell death due to injury).
OpenStax
Open Stax: Cell Growth and Division
The following site provides information regarding the process of cell growth and division.
OpenStax
Open Stax: Cellular Differentiation
The process of cellular differentiation leads cells to assume their final morphology and physiology - learn here all about this process.
TeachEngineering
Teach Engineering: Cell Membrane Color Sheet and Build a Cell Membrane
Students color-code a schematic of a cell and its cell membrane structures. Then they complete the "Build-a-Membrane" activity found at http://learn.genetics.utah.edu. This reinforces their understanding of the structure and function of...
TeachEngineering
Teach Engineering: Cell Celebration!
Students look at the components of cells and their functions. The lesson focuses on the difference between prokaryotic and eukaryotic cells. Each part of the cell performs a specific function that is vital for the cell's survival....
Vision Learning
Visionlearning: Structure of Plant Cells
An interactive plant cell that presents labels and definitions of the different cell parts when selected.
![Biology Mad: Structure and Function of the Cell [Pdf] Handout](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Biology Mad: Structure and Function of the Cell [Pdf] Handout")
Other
Biology Mad: Structure and Function of the Cell [Pdf]
This 11-page Biology course handout gives a detailed explanation of cell structure, supplemented by many illustrations.
Nature Research
Nature Education: Scitable: Essentials of Cell Biology
Explains how cells send and receive signals. Includes a quiz that can be completed after free registration.
University of Utah
University of Utah: Learning Center: learn.genetics: Dropping Signals
Choose a cell type and go inside to see how its signals travel. The response depends on the type of cell the signal reaches. Cell types include photoreceptor, muscle cell, fibroblast, leaf parenchyma, and cancer.
Enchanted Learning
Enchanted Learning: Plant Cell: Animal Cell Anatomy
This is a thorough site which contains a glossary of plant/animal cell anatomy terms. Diagrams of both cells are included along with worksheets to label.