Final answer:
The enzyme that catalyzes the reaction from phosphoenolpyruvate to 2-phosphoglycerate is C. phosphoglycerate mutase.
Step-by-step explanation:
This enzyme plays a crucial role in glycolysis, the metabolic pathway that breaks down glucose to produce energy. Phosphoglycerate mutase catalyzes the transfer of a phosphate group from the third carbon of 3-phosphoglycerate to the second carbon, resulting in the formation of 2-phosphoglycerate. This step is important for rearranging the carbon atoms and generating a high-energy phosphate bond.
After the conversion to 2-phosphoglycerate, the enzyme enolase further acts upon it, causing the loss of water and resulting in the formation of phosphoenolpyruvate (PEP). This dehydration reaction increases the potential energy in the remaining phosphate bond, further driving the glycolytic pathway. The correct answer is C. phosphoglycerate mutase.