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Discussion in 'MCAT: Medical College Admissions Test' started by Miski, Mar 22, 2004.

  1. Miski

    Miski New Member

    Jan 24, 2004
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    Can someone explain what a calcium chelator is? It's late and my brain's fried!
  2. UCLAstudent

    UCLAstudent I'm a luck dragon!
    10+ Year Member

    Sep 6, 2002
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    Resident [Any Field]
    Something that chelates calcium will bind with it to form a ring and make calcium unable to do anything. (EGTA, for example, chelates calcium.) As a side note, if you add EGTA to tissue in vitro, calcium-mediated exocytosis won't be able to occur (i.e. at synapses, in the acrosome reaction when a sperm fertilizes an egg).

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