Biochemistry Question of the Day

Which of the following describes the role of glutamine synthetase in protein catabolism?

I. Glutamine synthetase converts glutamate and ammonia to glutamine using one molecule of ATP

II. The reaction catalyzed by glutamine synthetase is reversible

III. The reaction catalyzed by glutamine synthetase removes excess nitrogen (in the form of toxic ammonia) from protein degradation

IV. Glutamine synthetase converts glutamine to glutamate