Oxidative stress: practice question

The best answer is A, Superoxide dismutase. Superoxide dismutase converts superoxide radicals into hydrogen peroxide, which can then be detoxified by catalase or glutathione peroxidase.

Catalase breaks down hydrogen peroxide to water and oxygen.

Xanthine oxidase produces uric acid and reactive oxygen species.

Glutathione reductase regenerates reduced glutathione.

It tests Oxidative stress in Biochemistry. The correct option holds because: Correct: superoxide dismutase converts superoxide to hydrogen peroxide.

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

Build one table of enzyme deficiency, disease, inheritance and key finding, then revise it by spaced recall. Then use the flashcards and the other Biochemistry questions on this site to test what stuck.

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.