What can be said to be the purpose of glycolysis?

What can be said to be the purpose of glycolysis? Where in the cell does glycolysis take place? Draw the structural formulas for glucose, glucose-6-phosphate, fructose-6-phosphate, fructose-1,6-bisphosphate, dihydroxyacetone phosphate, glyceraldehyde-3-phosphate and pyruvate. How is the glucose that is processed in glycolysis taken up in the cell? Is this an energy-intensive process? What is the total reaction if a glucose molecule is processed into the end product of glycolysis? How many moles of ATP, NADH and pyruvate are obtained (net) if 1 mole of glucose is processed by glycolysis? How many moles of ATP, NADH and pyruvate are obtained (net) if 1 mole of glucose-6-phosphate is processed by glycolysis? How many moles of ATP, NADH and pyruvate are obtained (net) if 1 mole of dihydroxyacetone phosphate is processed by glycolysis?