madkris135 Posted August 21, 2006 Share Posted August 21, 2006 ppl plz help me out with this CR Mice that have been given morphine are very likely to develop blood poisoning because bacteria that normally reside in the intestine typically respond to morphine by migrating into the bloodstream. However, when mice are given both morphine and the new drug naltrexone, blood poisoning is much less frequent, although it does still occur. These results provide support for researchers’ prediction that naltrexone will turn out to be toxic to certain types of bacteria. Which of the following, if discovered to be true, would most seriously weaken the support for the researchers’ prediction? A. After being administered to mice, naltrexone does not pass from the bloodstream into the intestine. B. Naltrexone inhibits morphine from triggering the migration of intestinal bacteria into the bloodstream. C. Mice that have been given naltrexone but not morphine have no greater risk of developing blood poisoning than do mice that have not been given either substance. D. The increased risk of blood poisoning is not the only harmful effect on mice of being given morphine. E. Conditions other than the presence of intestinal bacteria in the bloodstream can cause blood poisoning in mice. ps: i dont have the answer Quote Link to comment Share on other sites More sharing options...
prakul Posted August 21, 2006 Share Posted August 21, 2006 imo C Quote Link to comment Share on other sites More sharing options...
msps3000 Posted August 21, 2006 Share Posted August 21, 2006 is Naltrexone toxic to cetrain type of bacteria? ans should be no to weaken argument. a:doesnt ans the above question. it directly go to intestine...and kill or not kill? b.It prohibits other drug to trigger it send bacteria to blood. which means Natre...itself is not toxic. c.when Nitr..is given alone chances of disease are same as without any drug...means it is ineffective--doesnt ans our question d. out of scope as it talks abt Morphine e. no evidence is given relvant to this. evidence is about migration of bacteria which causes blood disease. ANS B. Quote Link to comment Share on other sites More sharing options...
skarya Posted August 21, 2006 Share Posted August 21, 2006 I picked C Quote Link to comment Share on other sites More sharing options...
dementor Posted August 21, 2006 Share Posted August 21, 2006 B it is. The cause of toxication is the migration of bacteria into the bloodstream and if Naxlotrin restricts it then the toxication cannot happen. Hence B weakens the conclusion. Quote Link to comment Share on other sites More sharing options...
vedigaurav Posted August 22, 2006 Share Posted August 22, 2006 B is the correct answer. Quote Link to comment Share on other sites More sharing options...
hangptt Posted August 22, 2006 Share Posted August 22, 2006 OA is B. Quote Link to comment Share on other sites More sharing options...
King Kong Posted August 22, 2006 Share Posted August 22, 2006 I pick B. Quote Link to comment Share on other sites More sharing options...
dprath Posted August 23, 2006 Share Posted August 23, 2006 Yes ,, My choice is also 'B'. Quote Link to comment Share on other sites More sharing options...
MikeJung Posted September 24, 2006 Share Posted September 24, 2006 B clear Quote Link to comment Share on other sites More sharing options...
ramyagupta Posted September 26, 2006 Share Posted September 26, 2006 imo B. Morphine initiates the bacteria from intestine into blood causing blood poisioning. With naltrexone+ morphine no blood poisoning. So naltrexone kills all bacteria. Weaken the stmt : naltrexone kills all bacteria and reduces the risk of blood posioning. Ans B and E qualifies. E is too vague and out of scope . Quote Link to comment Share on other sites More sharing options...
ashish214 Posted August 15, 2007 Share Posted August 15, 2007 I go with b Quote Link to comment Share on other sites More sharing options...
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