Just need help with questions #12 through #15 please and thank you! 12) Did you
ID: 881913 • Letter: J
Question
Just need help with questions #12 through #15 please and thank you!
12) Did you detect a difference in the radiation levels between the intact smoke detector and the Americium-241 removed from the smoke detector? If so why do you think the smoke detector is designed with that difference? 13) Besides for the smoke detector, do you think there is a deliberate purpose for the radiation in any of the other common objects or is it a side effect of the material. If there is a purpose what is it? 14) In what part of the atom do alpha and beta particles originate? 15) Why is protection from radiation necessary?Explanation / Answer
15)
Ionizing x-radiation in any quantities is very dangerous to health. Radiation ionizes oxygen to produce Reactive Oxygen Species (ROS) like OH which steal electrons from lipids in cell membranes, a process called lipid peroxidation. A chain of damaging events from a single high-energy electron event as unstable fatty acid radicals propagating in tissues produce other unstable radicals. The result can be damage to DNA or mitochondrial DNA, mangled chromosomes, protein cross-linking, and mutated germ cells. We can see loss due to radiation including vascular damage, cancers, skin erythema, hair loss, internal bleeding, cataracts, weakened immune systems, sterility, mutations in offspring, premature ageing and death. Cell DNA repair mechanisms are effective in correcting some radiation-induced damage but may themselves be compromised by radiation.
Radiation impact is very bad for health and all possible precautions should be taken to minimize exposure.
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