Four of the five enzymes in the urea cycle are evolutionarily related to enzymes found in
A) glucose transport.
B) electron transport chain.
C) nucleotide biosynthesis.
D) ubiquitination.
E) None of the answers is correct.
Correct Answer:
Verified
Q21: Ammoniotelic organisms excrete excess nitrogen as
A) xanthine.
B)
Q22: Uricotelic organisms release nitrogen as
A) NH4+.
B) arginine.
C)
Q23: Which amino acid is solely ketogenic?
A) leucine
B)
Q24: Which amino acids supply carbons as succinyl
Q25: What is the function of the acidic
Q27: What are some types of enzyme-catalyzed reactions
Q28: Ketogenic amino acids are degraded to
Q29: In the urea cycle, the second nitrogen
Q30: Which of the following is an allosteric
Q31: The eukaryotic system for ubiquitination appears to
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