Question

proteins can be described as all of the following except 1. homopolymers 2. polymer of differemt amino acid 3. macromolecules 4 heteropolymers​

Answer 1

Answer:

Unlike homopolymers, heteropolymers consist of macromolecules comprising more than one type of elementary unit. Any sample of a synthetic heteropolymer represents a mixture of an enormous (practically infinite) number of different individual chemical compounds. Even at the same degree of polymerization l the molecules vary in chemical composition and structure, i.e. in the fractions of units of different types and in the pattern of their arrangement. The number of conceivable isomers grows exponentially with l and for actual polymers essentially exceeds the Avogadro number. This is why it is impossible in principle to characterize a sample of such a polymer by setting the concentrations of individual chemical compounds because the vast majority of them will be represented by no more than a single macromolecule. There is a fundamental difference between this situation and that of homopolymers, where the number of molecules with any l in a sample is large enough to provide an adequate macroscopic description in terms of concentrations of homologues (l-mers)

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