They help to construct the human body. They drive every chemical reaction that takes place inside it. Likewise, they are manufactured by the body during the process of protein synthesis. This program studies the functions and characteristics of enzymes, among the most important proteins in our physiology. Viewers learn how enzymes are highly specific in their activity and form an enzyme-substrate complex that speeds up processes while activation energy decreases during a given reaction period. The film also shows how genetic engineering has led to the isolation of specific enzymes, such as polymerase, further enabling scientists to harness the power of enzymes.

Encoded with permission for digital streaming by Infobase on Aug. 26, 2010. Learn360 is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

Introduction to Enzymes (3:04) -- Enzymes in Living Organisms (4:47) -- Enzyme Kinetics and Enzyme Substrate Complex (4:57) -- Enzyme Activity (8:32) -- Power of Enzymes (4:12) -- Role of Enzymes: Conclusion (0:54) -- Credits: The Role of Enzymes (0:36).