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Pick odd one out. (a)Animal membrane

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+1 vote
in Enzyme Technology by (55.0k points)
Pick odd one out.

(a) Animal membrane

(b) Polyethylene

(c) Ammonium sulphate

(d) Cellophane tubing

I got this question during an interview.

My doubt is from Enzymes Purification topic in division Enzymes Purification of Enzyme Technology

1 Answer

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Right choice is (c) Ammonium sulphate

The explanation is: The odd one of the above is ammonium sulphate which is used to precipitate proteins. Whereas animal membrane, polyethylene and cellophane tubing are used as dialysis membrane which helps in removing ammonium sulphate. Collodion and colloids deposited in porous pot are also used as dialysis membrane.

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