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Q. Concerning their permeability how are membranes classified?
Membranes can be classified as permeable, impermeable, selectively permeable or semipermeable.
An impermeable membrane is so that through which no substance can pass. Semipermeable membranes are those that let barely solvents, like water, to pass through it. Permeable membranes are those that let solvent and solutes, like molecules and ions, to pass across it. There are as well selectively permeable membranes, i.e., membranes that besides allowing the passage of solvent let only some specific solutes to pass while blocking others.
Define Iron Factors affecting absorption of dietary iron? We have read earlier that iron in foods occurs either as haem or non-haem iron. Haem iron comprises of iron in combina
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What organic molecules make up the cell membrane?
Sickling occurs in deoxyhemoglobin S, but not in oxyhemoglobin S. Oxyhemoglobin has a small hydrophobic \"pocket\" in a ß chain region located in the interior of the protein. In de
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