Explore enzymes in this tutorial.

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...

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

[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.

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.

[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.

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]

[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...

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

[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.

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

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.

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]

In this activity, you will simulate an enzymatic reaction and explore what factors affect the activity of an enzyme.

In this science activity, you will investigate the enzyme called catalase to find out how it helps to protect your body from cell damage.

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

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.

Students can use an O2 Gas Sensor to measure the amount of O2 produced when H2O2 is broken down by the enzyme catalase at different concentrations, pH values, and temperatures. They will also measure the enzyme's initial reaction rates.

By using inquiry skills, students will design and complete a lab investigation to gain an understanding of the concept of enzymes.

Review over the factors that can control enzymatic activity with this article.

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

Learn how the enzymes in the digestive system help with the digestive process in the human body.