Reperfusion injury to cells a. results in very little cellular damage. b. involves formation of free radicals. c. results from calcium deficiency in cells. d. occurs following nutritional injury.

b. involves formation of free radicals.

Explanation:

Reperfusion injury is the injury that is caused by the damage of the tissues and cells due to deficiency of supply of oxygen to the cells through blood.  This results in the formation of the free radicals typically when the high energy electrons reduce the available oxygen to the tissues. This results in more damage to the tissues than the hypoxia.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.