The diagram represents a "substrate cycle" in glucose metabolism.Which of the following statements about the cycle is true?
A)Reactions I & II are catalyzed by the same enzyme and help establish equilibrium between the two metabolites.
B)Reaction II produces ATP by substrate-level phosphorylation.
C)Reaction II is catalyzed by an allosteric enzyme that is inhibited by fructose-2-6-bisphosphate.
D)Reaction I is involved in the biosynthesis of glucose.
E)Reaction II occurs under low-energy conditions when the cell needs ATP.

Question

The diagram represents a "substrate cycle" in glucose metabolism.Which of the following statements about the cycle is true? 
A)Reactions I & II are catalyzed by the same enzyme and help establish equilibrium between the two metabolites. 
B)Reaction II produces ATP by substrate-level phosphorylation. 
C)Reaction II is catalyzed by an allosteric enzyme that is inhibited by fructose-2-6-bisphosphate. 
D)Reaction I is involved in the biosynthesis of glucose. 
E)Reaction II occurs under low-energy conditions when the cell needs ATP.

Quizplus · Accepted Answer

The Answer of The diagram represents a "substrate cycle" in glucose metabolism.Which of the following statements about the cycle is true? 
A)Reactions I & II are catalyzed by the same enzyme and help establish equilibrium between the two metabolites. 
B)Reaction II produces ATP by substrate-level phosphorylation. 
C)Reaction II is catalyzed by an allosteric enzyme that is inhibited by fructose-2-6-bisphosphate. 
D)Reaction I is involved in the biosynthesis of glucose. 
E)Reaction II occurs under low-energy conditions when the cell needs ATP.

The Diagram Represents a "Substrate Cycle" in Glucose Metabolism