Final answer:
When functional differences exist between isoenzymes or interspecific enzyme homologs, they often seem to be structural differences.
Step-by-step explanation:
When functional differences exist between isoenzymes or interspecific enzyme homologs, they often seem to be
structural differences.
Isoenzymes are enzymes that perform the same function in different body parts, but they differ in their tertiary structure and a few amino acid residues. For example, lactate dehydrogenase (LDA) is an isoenzyme that catalyzes the conversion between pyruvate and lactate. These differences in structure can result in different enzyme kinetics and substrate specificity.