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Critical Reasoning - Help required.

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Critical Reasoning - Help required. [#permalink] New post 09 Apr 2010, 05:24
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D
E

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Question Stats:

67% (03:16) correct 33% (01:59) wrong based on 10 sessions
Guys,

Can someone please help in trying to figure out what's the correct answer and why for the below CR question?

Galanin is a protein found in the brain. In an experiment, rats that consistently chose to eat fatty foods when offered a choice between lean and fatty foods were found to have significantly higher concentrations of galanin in their brains than did rats that consistently chose lean over fatty foods. These facts strongly support the conclusion that galanin causes rats to crave fatty foods.

Which one of the following, if true, most supports the argument?

a) The craving for fatty foods does not invariably rsult in a rats chosing those foods over lean foods.
b) The brains of the rats that consistently chose to eat fatty foods did not contain significantly more fat than did thebrains of rats that consustently choos elean foods.
c) The chemical components are present in both fatty and lean foods
d) The rats that preferred fatty foods had the higher concentrations of galanin in their brains before they were offered fatty foods.
e) rats that metabolize fat less efficiently than do other rats develop high concentrations of galanin in their brains.
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Re: Critical Reasoning - Help required. [#permalink] New post 09 Apr 2010, 07:23
IMO it is D.

Conclusion is "galanin causes rats to crave fatty foods" and those rats chose to eat fatty food over lean food.

a) The craving for fatty foods does not invariably rsult in a rats chosing those foods over lean foods.
>> weakens the argument.
b) The brains of the rats that consistently chose to eat fatty foods did not contain significantly more fat than did thebrains of rats that consustently choos elean foods.
>> Content of fat in brain is of no use for conclusion.
c) The chemical components are present in both fatty and lean foods
>> Not relevant for conclusion
d) The rats that preferred fatty foods had the higher concentrations of galanin in their brains before they were offered fatty foods.
>> Yes. If this statement is correct, then we can safely concluse that galanin causes rats to crave fatty foods and so they eat the fatty food.
e) rats that metabolize fat less efficiently than do other rats develop high concentrations of galanin in their brains.
>> Rat's metabolism has no place in conclusion.
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Re: Critical Reasoning - Help required. [#permalink] New post 09 Apr 2010, 07:26
Thanks mads. Much appreciated. :P
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Re: Critical Reasoning - Help required. [#permalink] New post 13 Jul 2010, 22:39
nice 1
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Re: Critical Reasoning - Help required. [#permalink] New post 15 Jul 2010, 04:27
D
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Re: Critical Reasoning - Help required. [#permalink] New post 08 Feb 2015, 02:15
fyi
That was a question from PowerScore CR Bible
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Re: Critical Reasoning - Help required.   [#permalink] 08 Feb 2015, 02:15
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