Answer the blank: A certain protein can only act as a catalyst if it is linked with the B vitamin biotin. This protein is called _______________________ and biotin is its ______________________.
Catalyst or enzymes are the molecules that increase the overall rate of any reaction. Enzymes are mostly proteins in nature.
Some of the proteins have the tendency to bind to different molecules like vitamin B-complex molecules in order to act as enzymes or catalysts. If the protein bind to the biotin vitamin B then it acts as a catalyst and increases the rate of reaction. The proteins which form the active combination with the coenzymes are called the apoenzyme.
Hence, here the correct answer is that this protein is called an apoenzyme and biotin is its coenzyme.