All of the following are used to protect organisms from the toxic by-products of oxygen EXCEPT
A) carotenoids.
B) superoxide dismutase.
C) peroxidase.
D) protease.
E) catalase.

Question

Quizplus · Accepted Answer

Protease is not used to protect organisms from the toxic by-products of oxygen. Carotenoids, superoxide dismutase, peroxidase, and catalase are all enzymes or pigments that help protect cells from reactive oxygen species.

All of the Following Are Used to Protect Organisms from the Toxic