| I: | Glucose | 
| II: | Fructose | 
| 1. | Only I | 2. | Only II | 
| 3. | Both I and II | 4. | Neither I nor II | 
At which step, glycolysis reaches the break-even point where 2 molecules of ATP are consumed, and 2 new molecules are synthesized?
| 1. | Splitting of fructose-6-phosphate to two trioses | 
| 2. | Conversion of 1,3 biphosphoglycerate to 3 - phosphoglycerate | 
| 3. | Conversion of GADP to 1,3 biphosphogycerate | 
| 4. | Conversion of DHAP to GADP | 
Glycolysis is a sequence of ________ reactions involving ___________ intermediate compounds:
1. 10, 5
2. 10, 9
3. 10, 10
4. 9, 10
| 1. | Conversion of Glucose into Glucose-6-phospahte | 
| 2. | Conversion of Fructose-6-phosphate into Fructose 1,6-biphospahte | 
| 3. | Conversion of 1,3 biphoshoglyceric acid into 3-phosphoglyceric acid | 
| 4. | Conversion of Phosphoenol pyruvate into Pyruvic acid |