The enzyme that is important in protecting the cell from strong oxidizing agents that form during respiration by converting H2O2 to O2 and H2OGroup of answer choicessuperoxide dismutasecatalasehydrogen peroxideperoxidaseboth a and bNext

In which stage(s) of cellular respiration is oxygen (O₂) a reactant?Group of answer choicesoxidative phosphorylationcitric acid cycleglycolysispyruvate oxidation

Glutathione peroxidase, catalase, and superoxide dismutase are all enzymes that have a role inAnswers: A. amino acid oxidationB. pentose phosphate pathwayC. TCA cycleD. metabolism of reactive oxygen species

The primary role of O2 in cellular respiration is to:Act as an acceptor of electrons and protons forming waterCombine with carbon forming CO2Catalyse reactions of glycolysisCombine with lactate, forming pyruvate

Which is the oxidized form of NAD, the molecule that serves as an electron carrier during cellular respiration.Group of answer choicesNADHNAD⁺

The enzymes superoxide dismutase and catalase work together in a two-step process to convert reactive superoxide ions back to __________.ANSWERunreactive oxide ionsozonehydrogen peroxidemolecular oxygen and water