Bchintermediate
Match each glycolytic enzyme with the specific reaction it catalyzes: Enzymes: • Phosphofructokinase-1 • Aldolase • Enolase • Pyruvate kinase Reactions: • Fructose-6-phosphate to fructose-1,6-bisphosphate • Cleavage of fructose-1,6-bisphosphate into two triose phosphates • 2-Phosphoglycerate to phosphoenolpyruvate • Phosphoenolpyruvate to pyruvate
Answer
Phosphofructokinase-1 - Fructose-6-phosphate to fructose-1,6-bisphosphate, Aldolase - Cleavage of fructose-1,6-bisphosphate into two triose phosphates, Enolase - 2-Phosphoglycerate to phosphoenolpyruvate, Pyruvate kinase - Phosphoenolpyruvate to pyruvate
Explanation
### The pairs
| Item | Matches | Why |
|---|---|---|
| Phosphofructokinase | Fructose-6-phosphate to fructose-1,6-bisphosphate | This kinase uses adenosine triphosphate to phosphorylate fructose-6-phosphate. |
| Aldolase | Fructose-1,6-bisphosphate cleavage into two triose phosphates | Aldolase splits a six-carbon intermediate into two three-carbon products. |
| Enolase | 2-phosphoglycerate to phosphoenolpyruvate | Enolase removes water to form phosphoenolpyruvate. |
| Pyruvate kinase | Phosphoenolpyruvate to pyruvate | This reaction transfers phosphate to adenosine diphosphate, forming adenosine triphosphate. |
### Terms
- **Kinase**: An enzyme that transfers a phosphate group.
- **Triose**: A molecule containing three carbon atoms.
### Remember
The enzyme names often identify either the substrate or the reaction class.
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