23.Carbamyl phosphate synthetase_is a mitochondrial enzyme; it uses ammonium as the source of nitrogen, and is induced by feeding a high-protein diet. Carbamyl phosphate synthetase_is a cytosolic enzyme; it uses glutamine directly as the source of nitrogen, and is inhibited by pyrimidine nucleotides. A 1,2 B. 2,1 С. 3,4 D. 4, 3 24. The enzyme that catalyze this reaction is A a-ketoglutarate dehydrogenase B. glutamate kinase C. a-ketoglutarate synthetase D. glutamate dehydrogenase COOH COOH NADP)" COOH NADPIH sutamate ketoglutarate 25. The enzyme that catalyze this reaction is

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23. Carbamyl phosphate synthetase __is a mitochondrial enzyme; it uses
ammonium as the source of nitrogen, and is induced by feeding a high-protein diet.
directly as the source of nitrogen, and is inhibited by pyrimidine nucleotides.
A. 1, 2
В. 2, 1
С. 3,4
D. 4, 3
24. The enzyme that catalyze this reaction is
NH
A a-ketoglutarate dehydrogenase
B. glutamate kinase
C. a-ketoglutarate synthetase
D. glutamate dehydrogenase
COOH
соон
NADIP)"
COOH
NADPH CoOH
gutamate
o ketoglutarate
25. The enzyme that catalyze this reaction is
NH,
A. glutamate kinase
B. glutamine synthetase
C. glutamate phosphorilase
D. glutamine hydrolase
ÇOOH
ATP
ADP, HPO čoOH
čOOH
glutamate
gutamine
26. If you incubate isolated hepatocytes with
you will see that there is a steady increase in the formation of urea at
concentrations of ammonium, levelling off as the pathway for urea formation
concentrations of ammonium,
becomes saturated.
A Decreasing, high
B. Increasing, high
C. Increasing, low
D. Decreasing, low
Transcribed Image Text:Chemistry 23. Carbamyl phosphate synthetase __is a mitochondrial enzyme; it uses ammonium as the source of nitrogen, and is induced by feeding a high-protein diet. directly as the source of nitrogen, and is inhibited by pyrimidine nucleotides. A. 1, 2 В. 2, 1 С. 3,4 D. 4, 3 24. The enzyme that catalyze this reaction is NH A a-ketoglutarate dehydrogenase B. glutamate kinase C. a-ketoglutarate synthetase D. glutamate dehydrogenase COOH соон NADIP)" COOH NADPH CoOH gutamate o ketoglutarate 25. The enzyme that catalyze this reaction is NH, A. glutamate kinase B. glutamine synthetase C. glutamate phosphorilase D. glutamine hydrolase ÇOOH ATP ADP, HPO čoOH čOOH glutamate gutamine 26. If you incubate isolated hepatocytes with you will see that there is a steady increase in the formation of urea at concentrations of ammonium, levelling off as the pathway for urea formation concentrations of ammonium, becomes saturated. A Decreasing, high B. Increasing, high C. Increasing, low D. Decreasing, low
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