An informative lesson has learners read about, discuss, and study the classification, structure and importance of the following biomolecules: carbohydrates, proteins, lipids, nucleic acids, and enzymes. 

Why is lactase important? Biology scholars explore enzyme function in a structured inquiry lab. The activity tasks lab groups with observing how temperature and pH affect enzyme activity, as well as determining which milk products...

Milk does a body good ... unless, of course, someone is lactose intolerant. Pupils play the role of pharmaceutical scientists in a guided inquiry lab about lactase. Lab groups collaborate to learn more about lactose intolerance, how...

Can your biology class crack the Case of the Crown Jewels? Junior forensics experts try their hands at DNA restriction analysis in an exciting lab activity. The lesson introduces the concept of restriction analysis, teaches pipetting and...

The 20th installment in a series of 36 focuses on the characteristics of the p-block elements. Learners discuss, read about, and answer questions pertaining to the occurrence of these elements in nature, their electron configurations,...

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.

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

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.

This lesson will identify the structure and function of enzymes.

What are enzymes? Discover how enzymes work and learn about the different types.

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.

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

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

Discusses what happens during DNA replication and describes the prime replication enzymes found in eukaryotes.

Explains sources of rennin and what its functions and uses are.

A short, informational article which explains the structure and function of peroxisomes inside a cell.

What is a catalyst? This Khan Academy resource includes examples of enzymes, acid-base catalysis, and heterogeneous (or surface) catalysis.

Here you can learn about biochemistry, the chemistry of the living world. Content explores carbohydrates, lipids, amino acid structure and proteins, enzymes, nucleic acids, and metabolism.

This site tells what lysosomes are and what their functions are. Also, the site discusses how the Golgi complex sorts lysosomal enzymes.

Students explore the shifting role of senescent cells throughout the lifespan of organisms. The article discusses cancer, Judy Campisi, and enzymes. The resource consists of pictures, quotes, and links to additional resources.

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...

Students learn about molecules, cells, and systems. Some topics investigated in the tutorial are cell types, enzymes, plasma membranes, and the heart.

A short, informational piece which explains the structure and function of the lysosomes of a cell.