Enzyme - Wikipedia
An enzyme is a protein that acts as a biological catalyst, accelerating chemical reactions without being consumed in the process. The molecules on which enzymes act are called substrates, which are converted into products.

Enzyme | Definition, Mechanisms, & Nomenclature | Britannica
Enzyme, a catalyst that regulates the rate at which chemical reactions proceed in living organisms without itself being altered in the process. Most critically, enzymes catalyze all aspects of cell metabolism.

Enzymes – Definition, Examples, Function
Enzymes are specialized proteins (and in some cases RNA molecules) that act as catalysts in living organisms. They speed up the chemical reactions required for life by lowering the activation energy, all without being consumed in the process.

Enzyme: Definition, Types, Structure, Functions, & Diagram
Any substance that speeds up a biochemical reaction without being a reactant is called a catalyst. The catalysts for biochemical reactions in living systems are known as enzymes. They are thus known as biological catalysts or biocatalysts.

Enzymes: Function, definition, and examples - Medical News Today
Ions are inorganic molecules that loosely bond to the enzyme to ensure it can function. By contrast, coenzymes are organic molecules that also loosely bond with and allow an enzyme to do its...

Enzymes: What Are Enzymes, Pancreas, Digestion & Liver Function
Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems. Enzymes in our blood can also help healthcare providers check for injuries and diseases. What are enzymes?

What are enzymes? - Science Sparks
Enzymes are biological catalysts. In simple terms, they speed up chemical reactions. Living organisms have chemical reactions happening in them all the time. One way enzymes are used is to break down large molecules. For example, enzymes called carbohydrases convert carbohydrates into simple sugars ...

Enzyme - National Human Genome Research Institute
The enzyme is not destroyed during the reaction and is used over and over. A cell contains thousands of different types of enzyme molecules, each specific to a particular chemical reaction.

Enzymes: Structure, Types, Mechanism, Functions - Microbe Notes
An enzyme is a protein biomolecule that acts as a biocatalyst by regulating the rate of various metabolic reactions without itself being altered in the process.

What are enzymes? And what do they do? - USA TODAY
Enzymes are specialized proteins that speed up chemical reactions inside a living organism. Without them, most of the chemical reactions in your body wouldn't happen "or would occur too slowly to...