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Which of the following is used as an ion-exchanger resin?(a) ethanol(b) cellulose(c) starch(d) collagenThe question was posed to me during an interview.My question is from Protein Techniques topic in division Techniques in Cell Biology of Cell Biology

Answer»

The correct choice is (b) cellulose

Easiest explanation: Ion-exchange CHROMATOGRAPHY uses ionic bonding of proteins to an INERT matrix MATERIAL such as cellulose. Two types of cellulose RESINS commonly used are diethyl-aminoethyl (DEAE) cellulose and carboxymethyl (CM) cellulose.



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