#Question id: 961
#Unit 1. Molecules and their Interaction Relevant to Biology
Which type of organisms can eliminate excess nitrogen by the direct excretion of ammonia?
#Question id: 962
#Unit 1. Molecules and their Interaction Relevant to Biology
The carbon in urea originates from ________.
#Question id: 963
#Unit 1. Molecules and their Interaction Relevant to Biology
________ is hydrolytically cleaved to directly yield urea in the urea cycle.
#Question id: 964
#Unit 1. Molecules and their Interaction Relevant to Biology
In mammals, ureogenesis occurs almost exclusively in the ________.
#Question id: 965
#Unit 1. Molecules and their Interaction Relevant to Biology
How many ATP are consumed in the conversion of bicarbonate to carbamoyl phosphate?
#Question id: 966
#Unit 1. Molecules and their Interaction Relevant to Biology
In the urea cycle the nitrogen atoms originate from ________.