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: Process of Spermatogenesis Explained
Describes how sperm cells are formed through the process of spermatogenesis and some factors that can negatively affect sperm formation.
US Department of Agriculture
United States Department of Agriculture: Ultrastructure of Esophagus
This site from the US Department of Agriculture provides brief notes on the structure of the esophagus and cell bodies of juvenile roundworms.
BiologyWise
Biology Wise: Mitochondrial Matrix
Discusses the structure of the matrix inside a mitochondrion and how hundreds of concentrated enzymes are held there. The matrix takes part in mitochondrial functions such as the Krebs cycle, the electron transport chain, ATP synthesis,...
McGraw Hill
Mc Graw Hill: Epithelial Tissue
The structure and function of epithelial tissues and basements membranes are explained in this concise site.
Sophia Learning
Sophia: Cytoplasm: Lesson 2
This lesson will discuss the structure and function of the cytoplasm. It is 2 of 5 in the series titled "Cytoplasm."
Sophia Learning
Sophia: Cytoskeleton: Lesson 3
This lesson will discuss the structure and function of the cytoskeleton. It is 3 of 4 in the series titled "Cytoskeleton."
Sophia Learning
Sophia: Central Vacuole: Lesson 4
This lesson will discuss the structure and function of the central vacuole. It is 4 of 4 in the series titled "Central Vacuole."
Sophia Learning
Sophia: Centrioles: Lesson 3
This lesson will discuss the structure and function of the centrioles. It is 3 of 4 in the series titled "Centrioles."
Sophia Learning
Sophia: Centrioles: Lesson 4
This lesson will discuss the structure and function of the centrioles. It is 4 of 4 in the series titled "Centrioles."
Curated OER
The World of Cells: Mitochondria
Check this out if you want only the basic information on structure and function of mitochondria. It is accurate, but not too detailed.
Other
Guam: Phylum Platyhelminthes, or Flatworms
High school level description of the phylum Platyhelminthes, or flatworms, including characteristics, reproduction, and class.
Florida State University
Florida State University: Molecular Expressions: Ribosomes
A defining resource for ribosomes to assist while studying cells. See an illustration of the structure and function in protein synthesis.
CK-12 Foundation
Ck 12: Life Science: 2.6 Nucleus
Discover the structure and function of the nucleus of the cell.
OpenStax
Open Stax: Protein Synthesis
Most structural components of the cell are made up, at least in part, by proteins and virtually all the functions that a cell carries out are completed with the help of proteins. This site explains protein synthesis, including that of...
OpenStax
Open Stax: Anatomy and Physiology: Types of Tissues
The term tissue is used to describe a group of cells found together in the body. Although there are many types of cells in the human body, they are organized into four broad categories of tissues: epithelial, connective, muscle, and...
TeachEngineering
Teach Engineering: Keepers of the Gate
Through two lessons and five activities, students explore the structure and function of cell membranes. Specific transport functions, including active and passive transport, are presented. In the legacy cycle tradition, students are...
CK-12 Foundation
Ck 12: Nucleic Acids
[Free Registration/Login may be required to access all resource tools.] Online activity covers the structure and function of nucleic acids. Students will learn about nucleotides, the different types of nitrogenous bases, and the...
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.
TED Talks
Ted: Ted Ed: What Does the Liver Do?
There's a factory inside you that weighs about 1.4 kilograms and runs for 24 hours a day. It's your liver: the heaviest organ in your body, which simultaneously acts as a storehouse, a manufacturing hub, and a processing plant. This...
TED Talks
Ted: Ted Ed: How We See Color
There are three types of color receptors in your eye: red, green and blue. But how do we see the amazing kaleidoscope of other colors that make up our world? The following learning module explains how humans can see everything from...
Curated OER
York University: Neural Signal Transmission
Site with a graphic that shows the transmission of a nerve signal during the action potential phase of communication.
Texas Instruments
Texas Instruments: Numb3 Rs: Close Encounters
Based off of the hit television show NUMB3RS, this lesson has students explore how "closely connected" a network structure is. Framed in the context of a terrorist cell, students must find which setups would allow organizations to still...
Biology 4 kids
Biology4 Kids: Peroxisomes Another Enzyme Package
A short, informational article which explains the structure and function of peroxisomes inside a cell.