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单词 catalase
释义

catalase

noun

cat·​a·​lase ˈka-tə-ˌlās How to pronounce catalase (audio)
-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
catalatic
ˌka-tə-ˈla-tik How to pronounce catalase (audio)
adjective

Example Sentences

Recent Examples on the Web 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 See More

Word History

Etymology

catalysis

First Known Use

1901, in the meaning defined above

Medical Definition

catalase

noun

cat·​a·​lase ˈkat-ᵊl-ˌās, -ˌāz How to pronounce catalase (audio)
: a red crystalline enzyme that consists of a protein complex with hematin groups and catalyzes the decomposition of hydrogen peroxide into water and oxygen
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更新时间:2024/9/21 2:51:02