Resource examines how non-glucose molecules such as carbohydrates, proteins, and lipids enter the cellular respiration pathway. Also, looks at the use of cellular respiration intermediates for biosynthesis.

Introduction to redox in cellular respiration. Provides an overview of how cells break down fuels and looks at some of the electron transfer reactions that are key to this process.

The electron transport chain plays an important role in cellular respiration and photosynthesis and provides a biochemical pathway for the generation of ATP. The process is described here.

This site describes cellular components involved in light reaction and describes steps involved in photosynthesis.

A good general review of aerobic and anaerobic respiration. Good graphics and good embedded vocabulary links.

The cellular processes of exocytosis and endocytosis are described and a table comparing them is provided. Includes examples.

Explains the process of facilitated diffusion which allows selective movement of materials across the cellular membrane.

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.

Learn how prokaryotes get energy and nutrients, and find out the difference among chemotrophs, phototrophs, heterotrophs and autotrophs.

This article looks at a few of the most important core cell cycle regulators: proteins called cyclins, enzymes called Cdks, and an enzyme complex called the APC/C.

Article takes a look at how cancer develops and what's wrong with cancer cells. Also, delves into how abnormal forms of cell cycle regulators can contribute to cancer.

Evidence in support of endosymbiosis to show the evolution of organelles within cells.

Article presents an in-depth overview of oxidative phosphorylation which provides most of the ready chemical energy (ATP) used by the cells in your body.