Question

Glycolysis and gluconeogenesis share multiple enzymes. This is possible because the reactions catalyzed by the shared enzymes. true or false

Answer 1

Answer:

True

Explanation:

Glycolysis is the metabolic pathway that converts glucose into pyruvate. Gluconeogenesis is the synthesis of glucose using non-carbohydrate carbon substrates, such as lactate, glycerol, and amino acids.

Some of the reactions in the gluconeogenesis and the enzymes involved in the process are common to glycolysis, but gluconeogenesis requires four new reactions.

The gluconeogenesis pathway is indicated below. Red arrows represent characteristic reactions of the gluconeogenesis pathway and its enzymes. Blue arrows represent reactions common with glycolysis and its enzymes.

Enzymes involved in each step oh the pathway:

1. Pyruvate carboxylase
2. Phosphoenolpyruvate carboxykinase
3. Enolase
4. Phosphoglycerate mutase
5. Phosphoglycerate kinase
6. Glyceraldehyde 3-phosphate dehydrogenase
7. Triosephosphate isomerase
8. Aldolase
9. Fructose 1,6-bisphosphatase
10. Phosphoglucose isomerase
11. Glucose 6-phosphatase