kaplan question

[far123]

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Hey guys:
the raw material in the primitive environment did not include:
A)phosphorus
B)salt
C)methanol
d)water
E)ammonia
what is the correct answer and why?

 

[osimsDDS]

did not include phosphorus??

think about this, phosphorus is the building block for energy (ATP), the primitive earth enviornment prob did not have phosphorous, but it did have ammonia, sulfur, water, methanol, methane, CO2...it did not have O2

Therefore the early earth enviornment was very reducing, therefore it did not have Oxygen which oxidizes

 

[far123]

so primitive earth only had what Miller and urey used in their expriment?
thanks so much

 

[TeamGuo]

hahaha this question was like number 1 from kaplan's diagnostic exam.

 

[xiphoidprocess]

This was a DAT question, (took in May 2008) except the answers they had were :

Nitrogen, Phosphorus, Carbon, Water, Sulfur


I got frapped with the ethics passage as well.

 

[Andrew324]

Yeah its a funny question though, why did the early earth not have an element...thats pretty strange in my opinion

xiphoidprocess thats interesting

 

[doc3232]

Hey guys:
the raw material in the primitive environment did not include:
A)phosphorus
B)salt
C)methanol
d)water
E)ammonia
what is the correct answer and why?

hahaha this question was like number 1 from kaplan's diagnostic exam.

Ya it was, Only elements were C N H and very little O.
P wasn't one of the components of the primordial soup.

 

[Mstoothlady2012]

This was a DAT question, (took in May 2008) except the answers they had were :

Nitrogen, Phosphorus, Carbon, Water, Sulfur


I got frapped with the ethics passage as well.

so which one would you pick between P & S? I thought they both were absent.

 

[TheGreenWave]

so which one would you pick between P & S? I thought they both were absent.

according to the miller experiment C, N, O, H were present. some text books include S too.

I would say phosphorous was not in the early earth. My problem is that this experiment was found to be incorrect...

 

[Mstoothlady2012]

according to the miller experiment C, N, O, H were present. some text books include S too.

I would say phosphorous was not in the early earth. My problem is that this experiment was found to be incorrect...

what?? they were wrong? I thought there experiment was proved to be correct...

http://bcs.whfreeman.com/thelifewir...00|54000|55000|56000|57000|58000|99000|&ns=38

 

[TheGreenWave]

what?? they were wrong? I thought there experiment was proved to be correct...

http://bcs.whfreeman.com/thelifewir...00|54000|55000|56000|57000|58000|99000|&ns=38

I dunno, its just controversial b/c they are assumptions. If the experiment was correct or if it has proven to be incorrect doesnt really matter. In terms of the DAT, C,N,O,H, and S were in the "early atmosphere."

Man I cant wait to get this thing over with in a few days! Good Luck

 

[Mstoothlady2012]

I dunno, its just controversial b/c they are assumptions. If the experiment was correct or if it has proven to be incorrect doesnt really matter. In terms of the DAT, C,N,O,H, and S were in the "early atmosphere."

Man I cant wait to get this thing over with in a few days! Good Luck

Tell me about it 🙄

I am damn excited to start my summer finally in 4 days GL to you too!