Redox reactions in biology 150px|ascorbic acid 150px|dehydroascorbic acid Top: ascorbic acid (reduced form of Vitamin C)Bottom: dehydroascorbic acid (oxidized form of Vitamin C) thumb|upright|Enzymatic browning is an example of a redox reaction that takes place in most fruits and vegetables. Many essential biological processes involve redox reactions. Before some of these processes can begin, iron must be assimilated from the environment.
Redox reactions in biology 150px|ascorbic acid 150px|dehydroascorbic acid Top: ascorbic acid (reduced form of Vitamin C)Bottom: dehydroascorbic acid (oxidized form of Vitamin C) thumb|upright|Enzymatic browning is an example of a redox reaction that takes place in most fruits and vegetables. Many essential biological processes involve redox reactions Before some of these processes can begin iron must be assimilated from the environment.