Final answer:
3-Phosphoglycerate (3C) is converted to 2-Phosphoglycerate in the glycolysis pathway, followed by a dehydration reaction to form phosphoenolpyruvate. It is also a product in the Calvin cycle, contributing to the regeneration of other key compounds.
Step-by-step explanation:
The conversion of (2) 3-Phosphoglycerate (3C) to another compound is a crucial step in both the Calvin cycle in photosynthesis and the glycolysis pathway in cellular respiration. In the Calvin cycle, 3-Phosphoglycerate is the product, which eventually contributes to the regeneration of Ribulose bisphosphate (RuBP) and the production of glyceraldehyde-3-phosphate (G3P). In glycolysis, 3-Phosphoglycerate undergoes isomerization to become 2-Phosphoglycerate through the action of the enzyme phosphoglycerate mutase. This is then followed by a dehydration step catalyzed by enolase, where 2-Phosphoglycerate is converted to phosphoenolpyruvate, a precursor to pyruvate formation.
Furthermore, during the glycolytic pathway, one of the steps involves the substrate-level phosphorylation, where 1,3-bisphosphoglycerate donates a phosphate group to ADP, forming ATP and subsequently producing 3-Phosphoglycerate.