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【单选题】
Under conditions of rapid amino acid degradation, ammonia levels increaseand must be safely removed from the cells. Glutamate can accept a nitrogen in the form of ammonia to form glutamine. Which statement correctly describes what happens to the glutamine, and resulting ammonia and glutamate via the action of glutaminase, in various tissues?A.
In the liver, glutamine becomes part of the glucose/alanine cycle.
B.
In the kidney, glutamate forms salts with metabolic acids in the urine.
C.
In the intestine, glutamine is used as a fuel.
D.
In the kidney, the glutamate is used for urea synthesis.
E.
In the intestine, glutamine becomes part of the glucose/alanine cycle.
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