Enzyme vs. Protein — What's the Difference?

Sensitive to Conditions.

Immune Response.

Efficient.

Structural.

Biological.

Signaling.

Catalysts.

Catalytic.

Specific.

Protein Definitions and Examples

Enzymes () are proteins that act as biological catalysts (biocatalysts). Catalysts accelerate chemical reactions.

Proteins are large biomolecules and macromolecules that are comprised of one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another.

Any of numerous compounds that are produced by living organisms and function as biochemical catalysts. Some enzymes are simple proteins, and others consist of a protein linked to one or more nonprotein groups.

Any of a group of complex organic macromolecules that contain carbon, hydrogen, oxygen, nitrogen, and usually sulfur and are composed of one or more chains of amino acids. Proteins are fundamental components of all living cells and include many substances, such as enzymes, hormones, and antibodies, that are necessary for the proper functioning of an organism. They are essential in the diet of animals for the growth and repair of tissue and can be obtained from foods such as meat, fish, eggs, milk, and legumes.

(biochemistry) A globular protein that catalyses a biological chemical reaction.

Any of numerous large, complex naturally-produced molecules composed of one or more long chains of amino acids, in which the amino acid groups are held together by peptide bonds.

(Christianity) leavened bread, as opposed to azyme

One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods i.e. meat and some vegetables, such as legumes.

A protein produced by a living organism, capable of catalyzing a chemical reaction. Almost all processes in living organisms require some form of enzyme to cause the reactions to occur at a rate sufficient to support life. There are a very wide variety of enzymes, each specifically catalyzing a different chemical reaction, the sum of which cause the bulk of the physiological changes observed as life processes. Enzymes, like most proteins, are synthesized by the protein-synthetic mechanism of the living cell, at special sites on ribosomes, using the genetic information in messenger RNA transcribed from the genetic instructions stored as nuleotide sequences in the DNA (or in some viruses, the RNA) of the genome. Some examples of enzymes are: pepsin, diastase, rennet, DNA polymerase, invertase, glucose oxidase, protease, and ribonuclease. There are many other types of enzyme.

A food rich in protein, often a meat or meat substitute.

Any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions

In chemical analysis, the total nitrogenous material in vegetable or animal substances, obtained by multiplying the total nitrogen found by a factor, usually 6.25, assuming most proteids to contain approximately 16 per cent of nitrogen.

Any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes;

Yes, all enzymes are proteins, but not all proteins are enzymes.

Enzymes are specialized for catalysis, whereas other proteins have a broader range of functions.

Yes, enzymes can catalyze reactions repeatedly without being consumed.

Yes, factors like pH and temperature can significantly influence enzyme activity.

Yes, many proteins function as enzymes, catalyzing biochemical reactions.

Not all; while many proteins provide structural support, others serve in transport, signaling, or catalysis.

Structural proteins provide mechanical support, while enzymes catalyze chemical reactions.

Enzymes lower the activation energy required for reactions, making them proceed faster.

By the unique shape and chemical properties of their active sites.

Yes, many proteins function in roles other than catalysis, such as transport or signaling.

Yes, through mechanisms like allosteric regulation or substrate inhibition.

Typically, by adding the suffix "-ase" to the substrate or the type of reaction they catalyze.

They move molecules across cell membranes or throughout the body, like hemoglobin.

Yes, antibodies, a type of protein, are key players in the immune response.

A non-protein chemical compound or metallic ion required for an enzyme's activity.