What chemical transformations are catalzyed by the enzyme i) catalase and ii) nitrogenase
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confused, please help!
In nitrogen-fixing microorganisms, nitrogenase catalyzes the conversion of nitrogen to ammonia.
Catalase accelerates the breakdown of H2O2 into H2O and O2, in cells. H2O2 is a poisonous byproduct of metabolism
To find the chemical transformations catalyzed by the enzymes catalase and nitrogenase, we need to understand the functions of these enzymes.
1) Catalase:
Catalase is an enzyme found in cells that accelerates the breakdown of hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2). Hydrogen peroxide is a byproduct of various metabolic processes and can be toxic to cells if it accumulates. Catalase helps to rapidly convert hydrogen peroxide into harmless water and oxygen.
2) Nitrogenase:
Nitrogenase is an enzyme primarily found in nitrogen-fixing microorganisms, such as bacteria and some archaea. It is responsible for catalyzing the conversion of atmospheric nitrogen (N2) into ammonia (NH3). Nitrogen in its gaseous form (N2) is inert and cannot be directly used by most organisms. Nitrogenase enables the conversion of atmospheric nitrogen into ammonia, which is essential for the synthesis of biomolecules like proteins and nucleic acids.
So, to answer your question:
i) Catalase catalyzes the transformation of hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2).
ii) Nitrogenase catalyzes the transformation of atmospheric nitrogen (N2) into ammonia (NH3).
Remember, enzyme names often provide clues about the reactions they catalyze. For example, "catalase" suggests involvement in catalysis, while "nitrogenase" suggests involvement in nitrogen-related transformations.