Final answer:
The reactants and products of glycolysis can be matched to specific pathways: 1) Glucose-6-phosphate is converted to Fructose-6-phosphate; 2) Fructose-1,6-bisphosphate is converted to 2 Glyceraldehyde-3-phosphate; 3) 3-Phosphoglycerate is converted to 2-Phosphoglycerate; and 4) Pyruvate is converted to Acetyl CoA.
Step-by-step explanation:
The reactants and products can be matched with specific pathways of glycolysis as follows:
Option 1: Glucose-6-phosphate → Fructose-6-phosphate - This conversion occurs in step 2 of glycolysis, where the enzyme glucose-6-phosphate isomerase converts glucose-6-phosphate into fructose-6-phosphate.
Option 2: Fructose-1,6-bisphosphate → 2 Glyceraldehyde-3-phosphate - This conversion occurs in step 4 of glycolysis, where fructose-1,6-bisphosphate is split into two three-carbon molecules, glyceraldehyde-3-phosphate (G-3-P) and dihydroxyacetone phosphate (DHAP). However, DHAP is converted back into G-3-P by the enzyme triosephosphate isomerase, resulting in two molecules of G-3-P.
Option 3: 3-Phosphoglycerate → 2-Phosphoglycerate - This conversion occurs in step 7 of glycolysis, where the enzyme phosphoglycerate mutase transfers a phosphate group within the molecule, resulting in the conversion of 3-phosphoglycerate into 2-phosphoglycerate.
Option 4: Pyruvate → Acetyl CoA - This conversion occurs after glycolysis, in the transition reaction between glycolysis and the citric acid cycle. Pyruvate is transformed into Acetyl CoA by a multienzyme complex called the pyruvate dehydrogenase complex.