Use the following to answer the questions below:
In each of the following multiple-choice questions, characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
-Statements: (1) Each of the 20 standard amino acid carbon skeletons undergoes a different degradation process.
(2) The net effect of the urea cycle is the production of urea from ammonium ions and acetyl CoA.
(3) In transamination, the amino group of an amino acid is interchanged with the acid group of an alpha-keto acid.

Question

Quizplus · Accepted Answer

Statement 1 is false because while the carbon skeletons of amino acids do undergo degradation, they funnel into common pathways rather than each having a completely unique process. Statement 2 is false because the urea cycle produces urea from ammonium ions and bicarbonate, not acetyl CoA. Statement 3 is true as transamination involves the exchange of an amino group of an amino acid with the keto group of an alpha-keto acid.

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