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# Plz provide ur ans with explanation

Author Message
Manager
Status: want to get 720+in GMAT
Joined: 13 Mar 2011
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Kudos [?]: 42 [1], given: 0

Plz provide ur ans with explanation [#permalink]

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13 Aug 2011, 10:19
1
KUDOS
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Difficulty:

95% (hard)

Question Stats:

9% (00:50) correct 91% (01:55) wrong based on 47 sessions

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Plz provide ur ans with explanation
[Reveal] Spoiler: OA

Attachments

Q 136.pdf [289.94 KiB]

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Aim 720+

Kudos [?]: 42 [1], given: 0

Manager
Status: Writing my first GMAT on MArch 28/2012
Joined: 13 Sep 2010
Posts: 123

Kudos [?]: 33 [0], given: 9

Schools: Ivey, Rotman '15
GMAT Date: 03-28-2012
GPA: 2.8
WE: Corporate Finance (Other)

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13 Aug 2011, 11:14
I opted for C, I was wrong. After reading this over about 5 times the only thing I can figure is that the statement reads "the human heart secretes a hormone, a substance that controls the amount of salt in the blood and volume of blood circulating within the body." Which after reading it a few times tells me that the Heart, in this case, only has one function, that is to release this hormone, the hormone itself controls everything else. so in this sense maybe the only thing that matters is that a mechanical pump can be substituted to released the hormone as well and therefore it will take care of itself.

Hopefully somebody else chimes in with their opinion on this one.
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Kudos [?]: 33 [0], given: 9

Manager
Status: want to get 720+in GMAT
Joined: 13 Mar 2011
Posts: 50

Kudos [?]: 42 [0], given: 0

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23 Aug 2011, 23:21
nphelan wrote:
I opted for C, I was wrong. After reading this over about 5 times the only thing I can figure is that the statement reads "the human heart secretes a hormone, a substance that controls the amount of salt in the blood and volume of blood circulating within the body." Which after reading it a few times tells me that the Heart, in this case, only has one function, that is to release this hormone, the hormone itself controls everything else. so in this sense maybe the only thing that matters is that a mechanical pump can be substituted to released the hormone as well and therefore it will take care of itself.

Hopefully somebody else chimes in with their opinion on this one.

Thanks nphelan
_________________

Aim 720+

Kudos [?]: 42 [0], given: 0

Manager
Status: Applying for 2012 B school admissions
Joined: 25 Jul 2010
Posts: 128

Kudos [?]: 48 [0], given: 32

Location: India
Concentration: Strategy, Entrepreneurship
GMAT 1: 720 Q51 V35
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GPA: 3.6
WE: Manufacturing and Production (Pharmaceuticals and Biotech)

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24 Aug 2011, 08:16
couldn't settle for an answer, as each option seemed too strong or not supported by the argument. And finding out the OA did shock me, as I had ruled out D straightforward. But after reading nphelan's post, D does make sense.
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Mayank
My GMAT Journey: 720 + dare = 760

Kudos [?]: 48 [0], given: 32

Manager
Status: Bell the GMAT!!!
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Joined: 16 Aug 2011
Posts: 176

Kudos [?]: 83 [0], given: 43

Location: Singapore
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24 Aug 2011, 08:37
Even after reading the explanations, I am not able to understand the reasoning. Does anyone else has an opinion.
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Manager
Joined: 30 Jul 2011
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Kudos [?]: 29 [0], given: 24

Location: United States (NJ)
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24 Aug 2011, 10:24
I came to either answer A or D. I chose A, because I believed it actually had the most relevance to the passage. B, C, and E did not seem to fit "right" in my head.

I would also like an explanation that connects a mechanical pump (being utilized as an artificial heart) to topic of hormone secretion in the heart.

Kudos [?]: 29 [0], given: 24

Senior Manager
Status: mba here i come!
Joined: 07 Aug 2011
Posts: 261

Kudos [?]: 1247 [0], given: 48

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07 Sep 2011, 06:59
the passage mentions only one function of heard i.e. to secrete hormone, therefore D looks like a winner. i actually chose E but then i realized that a drug can itself be the hormone, so it does not necessarily have to influence the heart to secrete the hormone.

however, the OA is still debatable because the source is unreliable.
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Intern
Joined: 09 Nov 2008
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Kudos [?]: 1 [0], given: 3

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06 Oct 2011, 21:24
it is still not clear. Can anybody give sensible explanation for this as for me D is completely out of scope

Kudos [?]: 1 [0], given: 3

Manager
Joined: 28 Sep 2011
Posts: 81

Kudos [?]: 45 [0], given: 15

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06 Oct 2011, 23:19
MBAhereIcome wrote:
the passage mentions only one function of heard i.e. to secrete hormone, therefore D looks like a winner. i actually chose E but then i realized that a drug can itself be the hormone, so it does not necessarily have to influence the heart to secrete the hormone.

however, the OA is still debatable because the source is unreliable.

I chose E as well. Hormones seem to 'heavily influence' the blood pressure, therefore by controlling the hormone, the blood pressure can be regulated. In retrospect though, the passage does NOT say that controlling the hormone is the ONLY way to regulate the blood pressure. This weakens E.

D does not convince me fully. A mechanical pump can secrete hormones? Should it rather not be pumping blood at a fixed rate?

Kudos [?]: 45 [0], given: 15

Math Forum Moderator
Joined: 20 Dec 2010
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06 Oct 2011, 23:32
ravi67741 wrote:
Plz provide ur ans with explanation

None correct. Please ignore this question unless author tells us the exact source and OE.
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Senior Manager
Joined: 11 May 2011
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Kudos [?]: 121 [0], given: 46

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07 Oct 2011, 08:21
Source pls?
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Re: CR human heart   [#permalink] 07 Oct 2011, 08:21
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# Plz provide ur ans with explanation

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