What reaction is catalyzed by aldolase? a) isomerization of dihyroxyacetone phos

ID: 780910 • Letter: W

Question

What reaction is catalyzed by aldolase?

a) isomerization of dihyroxyacetone phosphate to glyceraldehyde 3-phosphate

b) ligation of glyceraldehyde 3-phosphate and dihydroxyacetone phosphate

c) cleavage of dihydroxyacetone phosphate to glyceraldehyde 3-phosphate

d) reversible cleavage of fructose- 1,6-bisphosphate to dihydroxyacetone phosphate and glyceraldehyde 3-phosphate

e) irreversible aldol condensation to dihyroxyacetone phosphate to glyceraldehyde 3-phosphate

What is a common mechanistic feature of kinases?

a) The binding of substrate induces cleft closing.

b) Phosphoryl groups are transferred from AMP to an acceptor

c) Kinases convert aldoses to ketoses.

d) Kinases require a momovalent metal ion for activity

e) All of the above.

Answe

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d) reversible cleavage of fructose- 1,6-bisphosphate to dihydroxyacetone phosphate and glyceraldehyde 3-phosphate

b) ligation of glyceraldehyde 3-phosphate and dihydroxyacetone phosphate b) Phosphoryl groups are transferred from AMP to an acceptor

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