CK-12 Foundation
Ck 12: Life Science: Enzymes in the Digestive System
[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...
Khan Academy
Khan Academy: One Gene, One Enzyme
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.
Sophia Learning
Sophia: Enzymes Proteins That Pack a Punch!
Through a combination of slide show tutorials and a video demonstration, learn how enzymes work. [3:00]
BioMan Biology
Bio Man Biology: Enzymatic!
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.
Science Education Resource Center at Carleton College
Serc: How Enzymes Work
For this biology lab, students use pineapple juice as an enzyme, and jello as a substrate to illustrate an enzyme/substrate complex.
BioMan Biology
Bio Man Biology: Life Chemistry Quizzes
Two multiple-choice quizzes, one on the processes and types of biological molecules, the other on the structure and replication of DNA.
Khan Academy
Khan Academy: Biology: Energy and Enzymes: Overview of Metabolism
An article reviewing how energy flows in a cell including metabolic pathways.
Khan Academy
Khan Academy: Energy and Enzymes: Enzyme Regulation
Review over the factors that can control enzymatic activity with this article.
TeachEngineering
Teach Engineering: Biological Processes: Putting Microbes to Work
Students learn the fundamentals of using microbes to treat wastewater. They discover how wastewater is generated and its primary constituents. Microbial metabolism, enzymes and bioreactors are explored to fully understand the primary...
Other
University of Akron: General, Organic, and Biochemistry: Enzymes [Pdf]
Slideshow notes introduce enzymes: their purpose, process, and importance.
Ducksters
Ducksters: Biology for Kids: Enzymes
Explore information about enzymes in the science of biology including what they do, how they work, and things that affect enzyme activity.
Georgia Department of Education
Ga Virtual Learning: Biology: Biological Molecules
Through informational text, interactive activities, step-through animations, and video clips, studnet explore biochemistry and the molecules that make up living things.
Concord Consortium
Concord Consortium:molecular Workbench:enzyme Linked Immunosorbent Assay (Elisa)
Learn about the ELISA test in this learning module. Explore how the Enzyme Linked Immunosorbent Assay (ELISA) test can be used to see if certain antigens are present.
BiologyWise
Biology Wise: Enzyme Substrate Complex
Discusses the properties of enzymes and the concept of enzyme-substrate specificity, and how a substrate molecule binds to an enzyme to form an enzyme-substrate complex. An overview of enzyme-substrate reactions is also presented.
BiologyWise
Biology Wise: What Are Enzymes and How Do They Work?
Explains what enzymes are, the three broad categories, their working mechanism and two theories developed to explain this, and factors that impact enzyme activity.
BiologyWise
Biology Wise: Important Factors That Influence Enzyme Activity
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...
BiologyWise
Biology Wise: Effect of P H on Enzymes
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.
BiologyWise
Biology Wise: Rennin (Enzyme)
Explains how rennin is produced and why it is important in the human body. Describes some other uses of rennin and how it is sometimes confused with a different enzyme named renin.
Khan Academy
Khan Academy: Restriction Enzymes & Dna Ligase
Learn about restriction digestion, where the result has sticky ends and blunt ends. Also find out about ligation reactions.
Chem4kids
Chem4 Kids: Biochemistry: Enzymes
This tutorial takes a brief look at enzyme activity and how enzymes work as catalysts.
BiologyWise
Biology Wise: An Overview of the Difference Between Nadh and Nadph
NADH and NADPH are enzymes involved in cellular processes. Explains how NADH participates in catabolic reactions where energy is released and NADPH is involved in anabolic reactions where energy is consumed. Their functions and chemical...
Other
Biology Guide: Molecules, Cells, and Systems
Students learn about molecules, cells, and systems. Some topics investigated in the tutorial are cell types, enzymes, plasma membranes, and the heart.
Khan Academy
Khan Academy: Biology: Energy and Enzymes: The Laws of Thermodynamics
Explore the first and second law of thermodynamics as it applies to the body in this article.
Khan Academy
Khan Academy: Biology: Energy and Enzymes: Free Energy
In this article, read all about the relationship between spontaneity and equilibrium to the Gibb's free energy change.