An information page about activation energy. Learn about activation energy, transition states, and reaction rates.

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.

Explains what is meant by enzyme activity and the factors that impact on their ability to function. Looks at temperature, pH value, substrate concentration, enzyme concentration, the presence of inhibitors, and allosteric factors that...

An article reviewing over enzymes and active sites.

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

Chemical reactions are constantly happening in your body - even at this very moment. But what catalyzes these important reactions? Vance Kite explains how enzymes assist the process, while providing a light-hearted way to remember how...

Explains what enzymes are, the three broad categories, their working mechanism and two theories developed to explain this, and factors that impact enzyme activity.

Every enzyme has an optimal pH value at which it functions best. This article explains why pH has an effect on enzyme activity and how it affects them.

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 focuses on restriction enzymes and their applications to DNA analysis and DNA fingerprinting....

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.

This tutorial takes a brief look at enzyme activity and how enzymes work as catalysts.

This is a basic project on the effect of enzymes on apple slices. The goal of the project is to monitor enzyme activity by measuring the amount of apple juice released by pectinase.

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.

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

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

This lesson shows that an active site is the space on an enzyme where a substrate would attach. It is 4 of 4 in the series titled "Active Site."

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

Learn about activation energy, transition state, and reaction rate.

Explore information about enzymes in the science of biology including what they do, how they work, and things that affect enzyme activity.

Slideshow notes introduce enzymes: their purpose, process, and importance.

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