Which of the Following is a Characteristic of Fructose Bisphosphate

Question

Which of the following is a characteristic of fructose bisphosphate aldolase in animal tissues?
A)It is a Class II aldolase.
B)It belongs to the transferase class of enzymes.
C)The reaction is reversible in erythrocytes (∆G is very small).
D)The products are an aldopentose phosphate and a ketotriose phosphate.

Accepted Answer

Fructose bisphosphate aldolase in animal tissues is a Class I aldolase and catalyzes a reversible aldol condensation reaction. The reaction is reversible in erythrocytes with a ∆G that is very small, indicating that the equilibrium is strongly toward the products. This enzyme is responsible for the breakdown of fructose-1,6-bisphosphate in glycolysis. The products of the reaction are a glyceraldehyde-3-phosphate and dihydroxyacetone phosphate.