試題詳解

30. Which of the following statements in the reactions involved in amino acid oxidation and the production of urea from via the urea cycle is       false      ?
(A) The coenzyme involved in a transaminase reaction is pyridoxal phosphate (PLP).
(B) In liver mitochondria, glutaminase catalyzes the reaction to release the amino group from glutamine; the products are α-ketoglutarate and ammonia.
(C) The pathways of the citric acid cycles and the urea cycles are interconnected.
(D) Aspartate directly donates a nitrogen atom for the formation of urea during the urea cycle.
(E) The urea cycle causes a net conversion of oxaloacetate to fumarate.