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单词 catalase
释义

Definition of catalase in English:

catalase

noun ˈkatəleɪzˈkatlˌās
mass nounBiochemistry
  • An enzyme that catalyses the reduction of hydrogen peroxide.

    Example sentencesExamples
    • The most simple case of such a chemical reaction is the decomposition of hydrogen peroxide in the presence of the enzyme catalase inside the cell.
    • In addition, normal cell growth could be restored by addition of catalase to the medium, breaking down the hydrogen peroxide to oxygen and water.
    • When the enzyme catalase is added to the hydrogen peroxide solution, the activation energy is lowered even further to 4 kJ / mol.
    • Many of these enzymes, such as catalase and glutathione peroxidase, are constitutively active and protect the lungs against everyday insults.
    • In addition, the human body produces its own antioxidants that take the form of enzymes, including catalase, glutathione peroxidase, and superoxide dismutase.

Origin

Early 20th century: from catalysis + -ase.

 
 

Definition of catalase in US English:

catalase

nounˈkatlˌās
Biochemistry
  • An enzyme that catalyzes the reduction of hydrogen peroxide.

    Example sentencesExamples
    • In addition, normal cell growth could be restored by addition of catalase to the medium, breaking down the hydrogen peroxide to oxygen and water.
    • Many of these enzymes, such as catalase and glutathione peroxidase, are constitutively active and protect the lungs against everyday insults.
    • In addition, the human body produces its own antioxidants that take the form of enzymes, including catalase, glutathione peroxidase, and superoxide dismutase.
    • When the enzyme catalase is added to the hydrogen peroxide solution, the activation energy is lowered even further to 4 kJ / mol.
    • The most simple case of such a chemical reaction is the decomposition of hydrogen peroxide in the presence of the enzyme catalase inside the cell.

Origin

Early 20th century: from catalysis + -ase.

 
 
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更新时间:2024/9/20 18:41:08