Final answer:
The dehydration of 2-phosphoglycerate (2PG) occurs in the Embden-Meyerhof pathway and is catalyzed by the enzyme enolase. This reaction results in the formation of phosphoenolpyruvate (PEP) and the release of water, potassium, and magnesium. It is a crucial step in glycolysis.
Step-by-step explanation:
When the dehydration of 2-phosphoglycerate (2PG) occurs, it undergoes a reaction in the Embden-Meyerhof pathway. The enzyme enolase catalyzes the dehydration reaction, resulting in the elimination of water from 2PG and the formation of phosphoenolpyruvate (PEP). This reaction releases H2O, potassium, and magnesium as byproducts. The dehydration of 2PG is an important step in glycolysis, a metabolic pathway involved in the conversion of glucose into energy.