i want asummery about it...like its definition.. if it caused diseases..what about this diseases...thanks...
2006-11-03 06:40:17 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
http://en.wikipedia.org/wiki/Free_radical#Free_radicals_in_biology
2006-11-03 08:15:21 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Free radicals are substances that contain unpaired electrons, and because of this they are very reactive.
The ability to harness oxygen's energy is a sophisticated technique that took many aeons of evolution to achieve. But it's not a risk-free process. During the series of oxidation reactions, a small percentage of highly 'excited' oxygen leaks out. This hyperactive customer is one of a mob of zappy, highenergy molecules that are called free radicals. Free radicals are so keen to get on and react with other substances that they start off destructive chain reactions. Free radical damage has been implicated as a factor in heart disease, cancer, rheumatoid arthritis, and even the process of ageing.
I hope this helps =)
2006-11-03 15:16:23 · answer #2 · answered by Annnie 2 · 0⤊ 0⤋
Free radicals are those which contain an odd electron or an unpaired electron . They are very reactive in nature. They readily react with other ions or molecules. They are formed by homolytic fission only.
2006-11-03 14:50:07 · answer #3 · answered by Sharada B 3 · 0⤊ 0⤋