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TBR Bio II.13 Chelation

Discussion in 'MCAT Study Question Q&A' started by feipar, 12.30.10.

  1. feipar

    feipar

    Joined:
    12.01.08
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    SDN 5+ Year Member

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    I am having trouble understanding this question. The passage suggests that a good chelator allows anchoring of gamma carboxyglutamate along with Ca2+ to bind with coagulation factors, thereby aiding in the formation of a clot.

    Q.13 asks what bests prevents clotting, and the answer explanation said that a good chelator has most carboxy groups.

    These two statements seem contradictory. I looked up chelation online, it seems to be a good anti-clotting agent. So how do we explain it's effect during clot formation at sites of injury?

    Thanks.
  2. shffl

    shffl

    Joined:
    09.20.10
    Messages:
    132
    Just came across this today as well. Is this an error or am I misunderstanding something?

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