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allantois v chorion

Discussion in 'DAT Discussions' started by AASDDS1, Jul 27, 2011.

  1. AASDDS1

    2+ Year Member

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    a lot of questions will ask to id the extraembryonic membrane based on a description, specifically, "which membrane serves in gas exchange"..

    both the chorion and allantois exchange gas between the embryo, and sometimes then answer will be one or the other. is there one that is dominant in the gas exchange role? unless the question lists other functions of the membrane, not sure how i would be able to tell..
     
  2. Bis-GMA111

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    gas exchange=chorion. wastes=allantois
     
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  3. wired202808

    wired202808 Membership Revoked
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    be careful here, chorion turns into the placenta and helps to transfer nutrients
    but allantois does both wastes (nitrogenous) AND gas exchange

    see wikipedia as a source, i also believe this question was asked in the destroyer or elsewhere but allantois actually has 2 functions.
     
  4. jp313

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    Allantois can be used as nitrogenous waste and as a gas exchange as well because the vessel of this structure lie close enough to the surface of the cell which allows gas exchange
     

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