bio chem 2

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Author:
xijunzhu
ID:
199792
Filename:
bio chem 2
Updated:
2013-02-11 16:37:37
Tags:
bio chem
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Description:
bio chem
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  1. what is the structure of hemoglobin like?
    alpha2 beta 2; little contact between alpha1 and alpha 2, or beta 1 and beta 2
  2. describe iron in deoxy-hemoglobin
    about 0.4 outside heme plane; rion with 5 ligands is too large to fit exactly in plane of heme; O2 binding reduces size of iron and it can move into plane
  3. what is the function of 2,3-BPG?
    lowers Hb affinity for oxygen (promotes oxygen release); more oxygen is needed to make energy; modulate amount of oxygen from hemeglobin to myoglobin

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