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5 Cards in this Set

  • Front
  • Back
In mammals the primary means of nitrogen excretion is
UREA O=C-(NH2)2
Most aquatic organisms release ammonia as _________ and are therefore called __________.
Ammonium ions; Amonotellic organisms.
Birds and land reptiles release ammonia in the form of _______________ and are therefore called __________.
URIC ACID

URICOTELIC Organisms
WHat is the first reaction of the urea cycle?
NH4 + CO2 + ATP ---> carbamoyl phosphate I

I and II are isoenzymes
Carbamoyl phosphate synthase I and II

cellular location:
nitrogen source:
Activator:
inhibitor:
I ; II

Inside mitochondria; cytisol
Ammonia; GLN
NAG ; NONE