All forms of life are made from these tiny units, one of two types--prokaryotes and eukaryotes. Explore the following links and learn more about cells and the cellular processes that make life possible!
Prokaryotic and Eukaryotic Cells
Everything that is alive is made of one of two types of cells -prokaryotic and eukaryotic. This series of articles explores the cells and cellular processes that are the common denominator shared by all living things.
Prokaryotes, the simplest form of life, are evolutionarily ancient, and for billions of years the only form of life; then came along a more advanced, complex type of cell. This link will take to to detailed information on eukaryotes.
The plasma membrane in the boundary of the cell,important in regulating the traffic of material into and out of the cell. Follow this link to information on the endomembrane system, passive transport, osmosis, diffusion and other related topics.
Eukaryotic Endomembrane System: Nuclear Membrane, Endoplasmic Reticulum, Golgi Apparatus & Vesicles
The endomembrane system is the manufacturing and material transport network that enables the cell to make, move and break down cellular products.
This system consists of the nuclear envelope, rough and smooth endoplasmic reticulum (ER), the Golgi apparatus as well as the cell's plasma membrane, and includes the vesicles that bud off these membranes for intracellular transport (moving stuff around inside the cell), exocytosis (stuff leaving the cell) and endocytosis (stuff coming into the cell).
Cell Cytoskeleton: Microtubules, Intermediate Filaments & Microfilaments
Microtubules, microfilaments, centrioles...oh my! This article is designed to help you better understand the role of the cellular cytoskeleton and its component parts and players.
Metabolism, Cellular Respiration and Fermentation: How Living Things Manipulate Energy
We hear the word used all the time, read diet books on how to boost ours and lament its slowing as we age. But what exactly is metabolism?
Learn about glycolysis, synthesis of acetyl-CoA, Kreb's Cycle and electron transport; the complex series of reactions that turn the food we eat into energy.
Concentration Gradient, Diffusion & Osmosis: Passive Transport and the Movement of Molecules
Diffusion is a passive process in which particles move from an area where they are more concentrated to an area where they are less concentrated.
The difference between the areas of high and low concentration is the concentration gradient.
Human Immunology: Immunology Links to a Broad Range of Topics
The human body has many defensive tactics; continuously working to eliminate potential pathogens from its territory.
This page is the link to numerous other Science Prof Online pages that are being developed on this complex topic.
Cell Biology Test Questions
SPO offers Sample Science Test Questions on several different science topics and subtopics. The Organic Chemistry Test Question list will be growing and changing as the site develops. So keep checking back and testing your knowledge.
Cell Biology Review Questions
SPO provides Review Questions for several subtopics of cell Biology. See the SPO Virtual Cell Biology Classroom for lecture topics, each of which has a link to review questions associated with that topic.
Sources
Images
Epithilial Cells: WikiBooks Cell Biology Text
Cell Endomembrane System: Mariana Ruiz
Macrophage: National Science Council
