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Maize contains the vitamin niacin, but not in a form the

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Maize contains the vitamin niacin, but not in a form the [#permalink] New post 08 Feb 2008, 06:53
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Maize contains the vitamin niacin, but not in a form the body can absorb. Pellagra is a disease that results from niacin deficiency. When maize was introduced into southern Europe from the Americas in the eighteenth century, it quickly became a dietary staple, and many Europeans who came to subsist primarily on maize developed pellagra. Pellagra was virtually unknown at that time in the Americas, however, even among people who subsisted primarily on maize.

Which of the following, if true, most helps to explain the contrasting incidence of pellagra described above?
A. Once introduced into southern Europe, maize became popular with landowners
because of its high yields relative to other cereal crops.
B. Maize grown in the Americas contained more niacin than maize grown in Europe
did.
C. Traditional ways of preparing maize in the Americas convert maize's niacin into a
nutritionally useful form.
D. In southern Europe many of the people who consumed maize also ate niacin-rich
foods.
E. Before the discovery of pellagra's link with niacin, it was widely believed that the
disease was an infection that could be transmitted from person to person.
[Reveal] Spoiler: OA
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Re: CR (Maize ) [#permalink] New post 08 Feb 2008, 07:12
az780 wrote:
Maize contains the vitamin niacin, but not in a form the body can absorb. Pellagra is a disease that results from niacin deficiency. When maize was introduced into southern Europe from the Americas in the eighteenth century, it quickly became a dietary staple, and many Europeans who came to subsist primarily on maize developed pellagra. Pellagra was virtually unknown at that time in the Americas, however, even among people who subsisted primarily on maize.

Which of the following, if true, most helps to explain the contrasting incidence of pellagra described above?
A. Once introduced into southern Europe, maize became popular with landowners
because of its high yields relative to other cereal crops.
B. Maize grown in the Americas contained more niacin than maize grown in Europe
did.
C. Traditional ways of preparing maize in the Americas convert maize's niacin into a
nutritionally useful form.
D. In southern Europe many of the people who consumed maize also ate niacin-rich
foods.
E. Before the discovery of pellagra's link with niacin, it was widely believed that the
disease was an infection that could be transmitted from person to person.


I go with C.

The paradox is that in the Americas maize is a primary staple and although the niacin is supposedly not absorbed by the body they do not develop Pellagra which results from a deficiency of niacin. When maize is introduced to Europe as a primary staple they do develop Pellagra.

So to resolve the paradox we must figure a way in which people in the Americas are somehow getting a sufficient amount of niacin.

Answer C solves this by stating that the way maize is cooked in the Americas allows the niacin to be usefull.
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Re: CR (Maize ) [#permalink] New post 08 Feb 2008, 11:34
C.

The only difference btwn Americas and Europe must be the way maize is prepared for consumption. C clearly states this.
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Re: CR (Maize ) [#permalink] New post 08 Feb 2008, 12:06
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A. Once introduced into southern Europe, maize became popular with landowners
because of its high yields relative to other cereal crops. - Conclusion has to do with the contrast between Europe and the Americas - Eliminated
B. Maize grown in the Americas contained more niacin than maize grown in Europe
did. - Conclusion has to do with niacin absorption difference - Eliminated
C. Traditional ways of preparing maize in the Americas convert maize's niacin into a
nutritionally useful form. - One of the logical reasons for the difference in niacin absorption - Keep
D. In southern Europe many of the people who consumed maize also ate niacin-rich
foods. - Contradictory with conclusion - Eliminated
E. Before the discovery of pellagra's link with niacin, it was widely believed that the
disease was an infection that could be transmitted from person to person. - Irrelevant to conclusion, conclusion is not about how pellagra is transmitted - Eliminated
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Re: CR (Maize ) [#permalink] New post 08 Feb 2008, 13:06
C
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Re: CR (Maize ) [#permalink] New post 08 Feb 2008, 23:49
OA is C
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Re: CR (Maize ) [#permalink] New post 09 Feb 2008, 00:28
Given:Maize contains vitamin niacin, whose deficiency results in Pellagra. Even after taking the dietary supplements, Europeans developed this disease and Americans not. The best way to explain this discrepancy is introduce information that shows inability of Europeans food to absorb Maize.

A. Once introduced into southern Europe, maize became popular with landowners
because of its high yields relative to other cereal crops.[But this has no clue to the discrepancy – eliminate it]

B. Maize grown in the Americas contained more niacin than maize grown in Europe
did.[But this won’t explain disease discrepancy – eliminate it]

C. Traditional ways of preparing maize in the Americas convert maize's niacin into a
nutritionally useful form. [Hold it]

D. In southern Europe many of the people who consumed maize also ate niacin-rich
foods.[If this were true, Europeans wouldn't have issue – eliminate it]

E. Before the discovery of pellagra's link with niacin, it was widely believed that the
disease was an infection that could be transmitted from person to person.[Has no information that explains discrepancy – eliminate it]

Answer: C
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Re: Maize contains the vitamin niacin, but not in a form the [#permalink] New post 21 Feb 2013, 05:20
A. Once introduced into southern Europe, maize became popular with landowners
because of its high yields relative to other cereal crops.popularity not result in consumption of Maize(incorrect)

B. Maize grown in the Americas contained more niacin than maize grown in Europe
did.irrelevant comparison(incorrect)

C. Traditional ways of preparing maize in the Americas convert maize's niacin into a
nutritionally useful form.right answer

D. In southern Europe many of the people who consumed maize also ate niacin-rich
foods.only say about europe(incorrect)

E. Before the discovery of pellagra's link with niacin, it was widely believed that the
disease was an infection that could be transmitted from person to person.irrelevant(incorrect)
Re: Maize contains the vitamin niacin, but not in a form the   [#permalink] 21 Feb 2013, 05:20
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Maize contains the vitamin niacin, but not in a form the

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