OpenStax
Open Stax: Cell Growth and Division
The following site provides information regarding the process of cell growth and division.
Vision Learning
Visionlearning: Cell Biology: Discovery and Structure of Cells
Explanation of when the cell was discovered and how ideas have evolved into modern cell theory. Discover the cell structures and their functions.
Nature Research
Nature Education: Scitable: Cell Energy and Cell Functions
An excerpt from the eBook, "Essentials of Cell Biology, Unit 1.2." Text and illustrations allow for deeper understanding of cells.
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.
National Institutes of Health
National Institute of General Medical Sciences: Inside the Cell
Very good science e-book that details why cells are the fundamental unit of life and why our health depends on what happens within the many different cells that make up our body. Each chapter is presented separately and the book can also...
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: Cell Cell Junctions
Learn about the different types of intercellular junctions, including plasmodesmata, tight junctions, gap junctions, and desmosomes.
PBS
Pbs Learning Media: Cell Membrane: Just Passing Through
This interactive feature describes some of the most important structures and functions of the cell membrane.
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.
Vision Learning
Visionlearning: Cell Biology: Membrane Bound Organelles
Evidence in support of endosymbiosis to show the evolution of organelles within cells.
Sophia Learning
Sophia: Cells: The Structural and Functional Units of Life
An illustrated presentation introducing the structure and function of the cell, including the two different types of cells: prokaryotic and eukaryotic.
BiologyWise
Biology Wise: Endothelial Cells and Epithelial Cells
Discusses the differences between endothelial and epithelial cells, including where they are found in the human body, their function, and their structure.
BiologyWise
Biology Wise: A Labeled Diagram of the Animal Cell and Its Organelles
The parts of an animal cell are presented with descriptions of each of its organelles.
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.
OpenStax
Open Stax: Anatomy and Physiology: Male Reproductive System
Students learn about the structure and function of the organs of the male reproductive system.
OpenStax
Open Stax: Anatomy & Physiology: The Pituitary Gland and Hypothalamus
Learn about the hormones released by the pituitary gland, their target cells, and their principal actions, as well as the structure and function of the hypothalamus.
Florida State University
Florida State University: Plant Cell Structure
This site features a clear picture of the plant cell with a concise explanation of its key parts and their functions.
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...
City University of New York
Exploring Life@bi Odot Edu: Cell Theory
Essay on the history of our knowledge of cells and the development of the cell theory.
University of Arizona
University of Arizona Biology Project: Cell Biology
In-depth information on all stages of cell biology as well as lesson ideas, tutorial diagrams, and online labs.
CK-12 Foundation
Ck 12: Life Science: 2.20 Cell Cycle
Understand the life cycle of a eukaryotic cell.
BiologyWise
Biology Wise: Tips on How to Make a Plant Cell Model
Describes the steps for making a model of a plant cell in two different ways. The first way uses mostly sweet foods and the second way uses a shoebox, clay, and simple materials.
BiologyWise
Biology Wise: Mitochondrial Function
Describes the structure and functions of the mitochondria.
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.