Free radicals and Antioxidants

Free radicals contain -------- electrons

ETC is a source of ---------- type of free radicals

Enzyme responsible for the production of Hydrogen peroxide

• SOD

• GSH reductase

• Catalase

Give an example for exogenous free radical sourse

• Peroxisome

• WBC

• UV radiation

• Mitochondria

Hydroxyl radical is -------- type free radical

• ROS

• RNS

• Others

---------- is a sulphur containing free radical

One-electron is added to O2 is called -----

• Peroxyl Radical

• Singlet oxygen

• Hydroxyl radical

• Super oxide

--------- formed in a rapid reaction between •O2- and NO•.

• Nitric oxide

• Peroxynitrite

• Hypochlorous acid

Fenton reaction is responsible for the production of -------

• Super oxide

• Singlet oxygen

• Hydroxyl radical

• Hydrogen peroxide

---------- is a non radical compound

• Super oxide

• Hydroxyl

• Peroxyl

• Singlet oxygen