There are three \"ketone\" bodies -- acetoacetate, 3-hydroxybutyrate, and aceton
ID: 861406 • Letter: T
Question
There are three "ketone" bodies -- acetoacetate, 3-hydroxybutyrate, and acetone.
Which of the following is true about ketone bodies?
A. One of them (3-hydroxybutyrate) is not a ketone (!)
B. Acetone production is non-enzymatic; that is, acetone is formed by spontaneous decarboxylation of acetoacetate.
C. These can be considered to be water-soluble fuel sources (sources of acetyl groups).
D. Acetoacetate is synthesized from 2 acetylCoA; and 2 acetylCoA can be obtained, metabolically, from acetoacetate.
E. All of the above are true.
Explanation / Answer
D. Acetoacetate is synthesized from 2 acetylCoA; and 2 acetylCoA can be obtained, metabolically, from acetoacetate.