Explain a linear polypeptide composed of 10 amino acids

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Reference no: EM13257515

The net charge of a polypeptide at a particular pH can be determined by considering the pKa value of each ionizable group in the protein. For a linear polypeptide composed of 10 amino acids, how many (alpha-carboxyl plus alpha-amino) groups must be considered?

a) 10

b) 11

c) 12

d) 2

e) 8

We think the answer might be 2 because we're only counting the C-terminus and the N-terminus and because the question doesn't suggest to count the side chains. Is this correct?

Reference no: EM13257515

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