catalase
noun
cat·a·lase
ˈka-tə-ˌlās 
-ˌlāz
: a red crystalline enzyme that consists of a protein complex with hematin groups and catalyzes the decomposition of hydrogen peroxide into water and oxygen
Examples of catalase in a Sentence
Recent Examples on the Web
In the liver 80 percent is broken down by alcohol dehydrogenase; the remaining 20 percent is possibly metabolized by another enzyme, catalase.
—
Mark Fischetti, Scientific American, 1 Sep. 2023
Are there any conditions that eliminate the catalase activity?
—Svenja Lohner, Scientific American, 10 Nov. 2016
In fact, the catalase reaction is dependent on the substrate concentration.
—Svenja Lohner, Scientific American, 10 Nov. 2016
Blood and most of our cells contain an enzyme called catalase.
—Dr. Michael Daignault, USA TODAY, 24 Feb. 2022
Certain cells in the small intestine have high amounts of catalase, an enzyme that breaks down hydrogen peroxide to release oxygen.
—Pratibha Gopalakrishna, STAT, 26 Aug. 2020
Yeast is an organism that contains a special chemical called catalase that can act as a catalyst to help break down hydrogen peroxide.
—Ben Finio, Scientific American, 1 Aug. 2019
Normally, catalase is one of the most efficient enzymes in the human body, capable of decomposing of millions of hydrogen peroxide molecules every second.
—David Grossman, Popular Mechanics, 28 May 2019
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Mark Fischetti, Scientific American, 1 Sep. 2023
Are there any conditions that eliminate the catalase activity?
—Svenja Lohner, Scientific American, 10 Nov. 2016
In fact, the catalase reaction is dependent on the substrate concentration.
—Svenja Lohner, Scientific American, 10 Nov. 2016
Blood and most of our cells contain an enzyme called catalase.
—Dr. Michael Daignault, USA TODAY, 24 Feb. 2022
Certain cells in the small intestine have high amounts of catalase, an enzyme that breaks down hydrogen peroxide to release oxygen.
—Pratibha Gopalakrishna, STAT, 26 Aug. 2020
Yeast is an organism that contains a special chemical called catalase that can act as a catalyst to help break down hydrogen peroxide.
—Ben Finio, Scientific American, 1 Aug. 2019
Normally, catalase is one of the most efficient enzymes in the human body, capable of decomposing of millions of hydrogen peroxide molecules every second.
—David Grossman, Popular Mechanics, 28 May 2019
Dictionary Entries Near catalase
Cite this Entry
“Catalase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catalase. Accessed 22 Dec. 2024.
Copy CitationMedical Definition
catalase
noun
cat·a·lase
ˈkat-ᵊl-ˌās, -ˌāz
: a red crystalline enzyme that consists of a protein complex with hematin groups and catalyzes the decomposition of hydrogen peroxide into water and oxygen
Love words? Need even more definitions?
Merriam-Webster unabridged
Share