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Home Q & A Board Biology-Related Homework Help Biochemistry
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ilovebball ilovebball
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11 years ago
(a) Arsenic is a metabolic poison that disrupts ATP synthesis in cells.  Based on that short description, predict which organelle arsenic most directly affects. (b) Arsenic-based compounds have been used to treat certain types of cancer.  Why might you think these drugs are useful against certain cancers?

Please help this is urgent!
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wrote...
#1
11 years ago
a) mitochondria, since it is the main site of ATP synthesis
b) they may disrupt ATP synthesis in cancerous cells (not that I know how they target cancerous cells only)
wrote...
#2
11 years ago
Arsenic and phosphorus have very similar chemical properties. If you look at the periodic table As is right below P. Therefore As can be substituted wherever a P can be present. A good example is ATP which has 3 P originally but if there is enough As present and not P present then As can take the place of P. If As is poisonous then this could be helpful when exposed to cancer cell causing apoptosis.
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