8. In the enzyme molecule, the coenzyme interacts with: a the anchor site of the active center D the substrate D the allosteric site the apoprotein D the holoprotein

The correct answer is: c. the allosteric site.<br /><br />In the enzyme molecule, the coenzyme interacts with the allosteric site. The allosteric site is a region on the enzyme that is distinct from the active center. When a coenzyme binds to the allosteric site, it can induce a conformational change in the enzyme, which can affect the enzyme's activity and substrate binding. This interaction between the coenzyme and the allosteric site is crucial for the regulation of enzyme activity and plays a vital role in the enzyme's catalytic function.