This is a good page for explaining the development and function of enzymes. It includes links to help with the chemistry and the biology that comes up.

Reactions in cells must be regulated and one way to do this is using allosteric molecules. These regulators can activate enzymes or inhibit them. This tutorial explains exactly how allosteric regulation works using words, narration, and...

[Free Registration/Login may be required to access all resource tools.] Describes how enzymes speed up biochemical reactions.

[Free Registration/Login may be required to access all resource tools.] Discusses the role of enzymes in biochemical reactions.

An article that reviews over the different types of energy: kinetic, potential, and chemical.

Enzymes create the conditions needed for biochemical reactions to happen fast. The general name that chemists use for a chemical entity that increases the speed of a reaction is a "catalyst." Enzymes are biological catalysts - they...

How well do you know the relationship between enzymes and activation energy? This resource provides you with short quizzes and tutorials to provide feedback for those topics you don't understand.

An article reviewing over enzymes and active sites.

[Free Registration/Login may be required to access all resource tools.] In this lesson, students will define enzyme, be able to discuss the role of enzymes in biochemical reactions, and summarize their importance to living organisms.

[Free Registration/Login may be required to access all resource tools.] This activity describes how enzymes speed up biochemical reactions and their importance to living organisms.

The discovery of restriction enzymes and their applications in DNA analysis has proven to be essential for biologists and chemists. This lesson focuses on restriction enzymes and their applications to DNA analysis and DNA fingerprinting....

Through interactive learning exercises, students examine the different definitions of energy and how enzymes regulate how the energy is stored and used during cellular respiration. They also take a close look at photosynthesis to learn...

[Free Registration/Login may be required to access all resource tools.] Explores how enzymes work and their role in chemical reactions in living cells.

Learn about the basics of enzyme kinetics graphs, and see examples of the graphs to understand the valuable data that is found on the graph. [12 min, 29 sec]

This simulation can be used to test how factors such as temperature, pH, and concentrations affect the reaction rates of two different enzymes in a biochemical pathway.

Animated learning exercise about all types of enzymes and their uses. Learn how different types of enzymes work and what effects them.

This site is a retired biology professor's explanation of restriction enzymes. Good visual showing examples of how enzymes cut DNA to produce blunt or sticky ends.

[Free Registration/Login may be required to access all resource tools.] Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive...

Learn about these historical experiments having to do with genes being connected to enzymes: Garrod's studies of alkaptonuria and Beadle and Tatum's work with Neurospora mutants.

Through a combination of slide show tutorials and a video demonstration, learn how enzymes work. [3:00]

Learn about the critical role enzymes play in supporting life as you play games and solve puzzles, and do virtual experiments. Then take a quiz to check your understanding.

For this biology lab, students use pineapple juice as an enzyme, and jello as a substrate to illustrate an enzyme/substrate complex.

Two multiple-choice quizzes, one on the processes and types of biological molecules, the other on the structure and replication of DNA.

An article reviewing how energy flows in a cell including metabolic pathways.