help

Discussion in 'AIIMS Nov 2013' started by guestdoc, May 14, 2004.

  1. guestdoc

    guestdoc Guest

    koi meri madad karega kya..

    Biological role of metallothioneins is to sequester harmful metal ions. These bind :

    a. Cd++ Cu ++ and Zn ++
    b. Al+++ Hg++ &NH4 +
    c. Pt++ As +++ & PO4-
    d. Fe+++ Na+ & K+

    will appreciate any help.
  2. cns

    cns Guest

    metallothioneins

    Ans
    Cd++ Cu++Zn++
    Ref:Harpers
  3. Guest

    Guest Guest

    the point is the metallothioneins with the thio group(-S-) can bind ions with valency 2.

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