n the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, t

Question

n the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate is excreted into the blood and returns to the liver where it is converted back into glucose by gluconeogenesis. For each enzyme below, identify whether it is involved in the glycolysis pathyway, gluconeogenesis pathway, both pathways or neither pathway. 1. glyceraldehyde 3-phosphate dehydrogenase 2. glucose-6-phosphatase 3. transketolase 4. fructose-1,6-bisphosphatase

1. glyceraldehyde 3-phosphate dehydrogenase O glycolysis O gluconeogenesis O both O neither 2. glucose-6-phosphatase O glycolysis O gluconeogenesis O both O neither 3. transketolase O glycolysis gluconeogenesis both neither 4. fructose-1,6-bisphosphatase O glycolysis O gluconeogenesis 5. pyruvate kinase glycolysis O gluconeogenesis O both neither 6. phosphoglycerate mutase O glycolysis O gluconeogenesis O both neither 7. phosphofructokinase-1 O glycolysis gluconeogenesis O both neither 8. fumarase O glycolysis O gluconeogenesis Map Scroll down

Explanation / Answer

classsification of enzymes according to its involvement in biological cycle

1. Glyceraldehyde-3-phosphate dehydrogenase

Both

2. Glucose-6-phosphatase

Glucogenesis

3. Transkeloase

neither

4. Fructose-1,6-bisphosphatase

Glucogenesis

5. Pyruvate kinase

glycolysis

6. Phosphoglycerate mutase

glycolysis

7. Phosphofructokinase - I

glycolysis

8. Fumarase

neither

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