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The absence of which structure in cellulose does not allow it to hold iodine molecules?(a) Branches(b) Left non-reducing end(c) Right reducing end(d) HelixThe question was asked in an internship interview.Origin of the question is Biomolecules in portion Biomolecules of Biology – Class 11

Answer»

The correct choice is (d) Helix

The explanation: Iodine MOLECULES are held in HELICES of polysaccharide structures such as STARCH. The SECONDARY structure of starch is helical and can hence HOLD starch. Cellulose has a linear structure and thus, cannot hold iodine molecules.



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