Students use the information they learned from reading food labels to create mush meals. They blend unlikely meals together to form the mush and then evaluate its nutritional value. They examine their own eating habits after the lab is...

Take an interactive quiz over biochemistry and organic chemistry. After completing the quiz, check your score, and then revisit any incorrect question for further review.

Matter of any type can be subdivided into particles that are too small to see, but even then the matter still exists and can be detected by other means. Students will participate in hands-on activities to prove that matter is made up of...

Article explaining what the nitrogen cycle is, and its role in an ecosystem. (Published: June 28, 2010)

Enter the DNA factory to simulate the process of DNA replication. After each step of the progression, take a quick quiz before moving on.

A set of virtual experiment assignments where students investigate the biochemistry of hemoglobin and the role it plays in the functioning of human red blood cells. Includes background information, glossary, online notebook, and...

When biologists want to separate different pieces of DNA, RNA, or proteins they use a technique called gel electrophoresis. In this science project you'll build a gel electrophoresis chamber and use it to discover how many components are...

The main objective for this exercise is to enhance your study of the properties and structures of biological molecules with modern computer graphics. Rather than passively viewing illustrations of molecular structure as they occur in...

This Chemistry tutorial will introduce you to some important chemical concepts.

This unit will look at the most common biological molecules. The objective is for you to become familiar with the structures and properties of sugars, lipids, amino acids and nucleotides.

Learn about the solvent properties of water, pH, pKa and buffering capacity with a series of problems. The correct answers for the multiple choices problems are reinforced with a brief explanation and the incorrect answers are linked to...

Learn how metabolic acidosis or alkalosis can arise and how these conditions shift the bicarbonate equilibrium. The correct answers for the multiple choices problems are reinforced with a brief explanation and the incorrect answers are...

Learn which biological reactions require either B12, folate or both and he consequences of a deficiency in either vitamin. The correct answers for the multiple choices problems are reinforced with a brief explanation and the incorrect...

The purpose of this set of problems is for you to become familiar with some key principles about enzymes, catalysis and energy. The correct answers for the multiple choices problems are reinforced with a brief explanation and the...

The purpose of this set of problems is to give you a basic understanding of some of the fundamental concepts of metabolism. The correct answers for the multiple choices problems are reinforced with a brief explanation and the incorrect...

In this module you can learn how certain carbohydrate pathways are reciprocally affected by insulin and glucagon. The correct answers for the multiple choices problems are reinforced with a brief explanation and the incorrect answers are...

In this module you will be able to test your understanding of how light energy is converted into different forms of chemical energy during photosynthesis, to review the equations for the light reactions of photosynthesis, and to explore...

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.

Major Resource Kits link academic majors to career alternatives by providing information on career paths, sample job titles, and a short bibliography of Career Resource Center materials available to students in a particular major....

An online quiz with nine questions about the chemistry of the human body and of other life. Has ads, which may be distracting.

This site provides an interactive assessment in which you will learn which biological reactions require either B12 or folate (or both), the consequences of a deficiency in either vitamin, and the important step in which B12 and folate...

The purpose of this tutorial is to introduce you to some of the chemical concepts which are necessary to understand biology. Concepts include the basics for understanding biology, chemical bonds and attractive forces, the chemistry of...

In this interactive module, you will learn how metabolic acidosis or alkalosis can arise and how these conditions shift the bicarbonate equilibrium. The body's compensatory mechanisms and treatment options are also discussed.