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NMR data

Discussion in 'MCAT Discussions' started by akalin24, Apr 18, 2004.

  1. akalin24

    akalin24 Member
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    Anyone recall picking ethanol for the byproduct of glycolysis in the anomeric sugar passage?? I believe the NMR data given in the passage had three sets of peaks which correlates to ethanol.
     
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  3. 0099900

    0099900 Senior Member
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    Yup .. that's what I put too. It was a quartet, triplet an a singlet with no characteristic carbonyl stretch. Hope that's right :)
     
  4. vegangirl

    vegangirl DOctor begins with DO
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    I said ethanol too. Thank God:) I knew it wasn't three products, and i new ethanol would have 3 non-equivalent Hs.
     
  5. ASDIC

    ASDIC The 9th Flotilla
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    crap...i got this one wrong!!

    :mad:
     
  6. UCLAstudent

    UCLAstudent I'm a luck dragon!
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    It was ethanol. A triplet shifted to 4, a quartet at 1.5, and broad band at 2 is ethanol. Those numbers aren't exact, but close. :)
     
  7. gomizzou

    gomizzou Member
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    We never got to NMR in my Organic class so I still don't understand it even after reading the short Kaplan explanation. I had 3! questions dealing with it, so I pretty much wasted time by trying to memorize those IR numbers.
     
  8. freaker

    freaker Senior Member
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    Sweet.

    Anyone remember the final recipient of electrons in the electron trasnport chain?

    I think I chose water, but I can't remember if O2 was an answer choice. It would be pretty lame if both H20 and O2 were answer choices.
     
  9. UCLAstudent

    UCLAstudent I'm a luck dragon!
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    It is O2. O2 receives the electrons to form water.
     
  10. ASDIC

    ASDIC The 9th Flotilla
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    O2 is reduced to water
     
  11. shock827

    shock827 Senior Member
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    This question threw me off because it said that ethanol was a product of glycolysis. I thought it was a product of fermentation..... sigh.. But I put it anyways cuz the other answers were whack.
     
  12. Kazema

    Kazema In a kingdom by the sea
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    Yeah the other hint was that N2 was bubbled through or something to maintain anaerobic conditions.
     
  13. akalin24

    akalin24 Member
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    The answer was O2. After O2 accepts the electrons water is formed. That was kind of tricky because most people probably glazed over the question without really reading it and chose H2O. Because afterall water is the end product.
     
  14. blz

    blz Senior Member
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    I believe fermentation is included in glycolysis if need be.
     
  15. fun8stuff

    fun8stuff *hiding from patients*
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    I wish I could find someone who had the same form as me (EH). I had similar questions to these, but not exactly. For example, I had one asking what was the source of the oxygen in the anaerobic respiration intermediates (glucose) and I had an NMR where the answer was t-butyl iodide (only one type of hydrogen.
     

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