Explain how glutathione peroxidase converts hydrogen peroxide to water and the role of NADPH in this process.

Glutathione peroxidase directly oxidizes hydrogen peroxide to water, and NADPH is used to stabilize the enzyme.

Glutathione peroxidase uses NADPH to directly reduce hydrogen peroxide to water.

Glutathione peroxidase uses glutathione to reduce hydrogen peroxide to water, and NADPH is needed to regenerate reduced glutathione.

Glutathione peroxidase converts hydrogen peroxide to water by oxidizing NADPH.