Question

Free radicals may damage the body by A. Stealing electrons causing cell death and aging B....

Free radicals may damage the body by

A. Stealing electrons causing cell death and aging
B. Stealing electrons causing DNA damage and cancer
C. Both of these
D. Neither of these

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Answer #1

Answer is C. ( both of these)

Free radicals are the compounds which have unlaired electron. These free radical steals electron from other molecules such as DNA, protein etc and leads to the oxidation of these molecules. Because removal of electron leads to oxidise the compound. This leads to damage the DNA molecule and protein inside the cell. This leads to apoptosis of the cell which will lead to death of the cell. It also causes the cancerous cell formation from normal cell when they activate the proto- oncogenes in genome.

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