What feature do procarboxypeptidase, pepsinogen, fi brinogen, chymotryp- sinogen have in common? A. they are all enzymes. B. they are all produced by the pancreas. C. they are all inactive. D. they all digest proteins.
Option C. They all are inactive form.The prefi x and suffi x “pro-” and “-ogen” discuss with those mole- cules desiring modifi cation to grow to be enzymes. In their present shape they are inactive.
