Enzyme - Wikipedia
An enzyme is a biological macromolecule, usually 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, function, and examples - Medical News Today
Ions are inorganic molecules that loosely bond with 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 – 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.

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 and Their Functions? 6 Types in the Body
Enzymes are proteins that are made up of several polypeptide chains, also called amino acids, that have undergone repetitive folding and coiling. They have three-dimensional structures made of linear chains of amino acids. The amino acid sequence of an enzyme determines its catalytic activity.

Enzymes: What They Are and How They Work - Verywell Health
Enzymes are substances in the body that cause and speed up crucial chemical reactions. Enzymes’ function is to help trigger bodily processes ranging from digestion to blood clotting to growth. There are many types of enzymes, and most enzymes are proteins.

Enzymes - Definition, Structure, Classification, Examples
Enzymes are biological molecules that act as catalysts, speeding up chemical responses in living organisms. They work by lowering the activation energy needed for a response to do, therefore adding the rate of the response without being consumed themselves.

ENZYME Definition & Meaning - Merriam-Webster
The meaning of ENZYME is any of numerous complex proteins that are produced by living cells and catalyze specific biochemical reactions at body temperatures.

Enzyme - National Human Genome Research Institute
An enzyme is a biological catalyst that is usually a protein but could be RNA. The point of a catalyst is to increase the speed with which a reaction happens. And there are many, many enzymes that are encoded by the genome to make proteins or RNAs that speed up various chemical reactions to do thousands of different functions inside a cell.