The urea cycle rids the body of excess nitrogen by converting it to a form that can be excreted in the urine. Label the steps of the urea cycle shown in the diagram and move the molecules to their positions. These enzyme abbreviations are used: ornithine transcarbamoylase, OTC; and argininosuccinate synthetase, ASS. ornithine Coo H₂N-C-H CH2 CH2 CH2 NH₂ Arginase hydrolyzes a carbon-nitrogen bond to yield urca and ornithine. Argininosuccinase splits fumarate from argininosuccinate. COO H₂N-C-H CH2 CH2 CH2 NH H₂N-C=NH₂ arginine OTC transfers a carbamoyl group to citrulline Coo ornithine. H₂N-C-H CH2 CH2 CH2 H -NH₂ NH ooc-CH2-C-Coo H₂N-C=0 NH₂ aspartate ASS adds aspartate ATP to citrulline. AMP + PP H₂N- -NH2 Coo H₂N-C-H Answer Bank CH2 CH2 →8-=- coo CH2 CH2 ΝΗ Coo fumarate H-C-NH-C NH Coo argininosuccinate
The urea cycle rids the body of excess nitrogen by converting it to a form that can be excreted in the urine. Label the steps of the urea cycle shown in the diagram and move the molecules to their positions. These enzyme abbreviations are used: ornithine transcarbamoylase, OTC; and argininosuccinate synthetase, ASS. ornithine Coo H₂N-C-H CH2 CH2 CH2 NH₂ Arginase hydrolyzes a carbon-nitrogen bond to yield urca and ornithine. Argininosuccinase splits fumarate from argininosuccinate. COO H₂N-C-H CH2 CH2 CH2 NH H₂N-C=NH₂ arginine OTC transfers a carbamoyl group to citrulline Coo ornithine. H₂N-C-H CH2 CH2 CH2 H -NH₂ NH ooc-CH2-C-Coo H₂N-C=0 NH₂ aspartate ASS adds aspartate ATP to citrulline. AMP + PP H₂N- -NH2 Coo H₂N-C-H Answer Bank CH2 CH2 →8-=- coo CH2 CH2 ΝΗ Coo fumarate H-C-NH-C NH Coo argininosuccinate
Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 44SST
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The urea cycle rids of the body of excess nitrogen by converting it to a form that can be excreted in the urine. Label the steps of the urea cycle shown in the diagram and move the molecules in their positions.
Transcribed Image Text:The urea cycle rids the body of excess nitrogen by converting it to a form that can be excreted in the urine. Label the steps of the
urea cycle shown in the diagram and move the molecules to their positions.
These enzyme abbreviations are used: ornithine transcarbamoylase, OTC; and argininosuccinate synthetase, ASS.
ornithine
Coo
H₂N-C-H
CH2
CH2
CH2
NH₂
Arginase
hydrolyzes a
carbon-nitrogen
bond to yield
urca and
ornithine.
Argininosuccinase
splits fumarate
from
argininosuccinate.
COO
H₂N-C-H
CH2
CH2
CH2
NH
H₂N-C=NH₂
arginine
OTC transfers a
carbamoyl group to
citrulline
Coo
ornithine.
H₂N-C-H
CH2
CH2
CH2
H
-NH₂
NH
ooc-CH2-C-Coo
H₂N-C=0
NH₂
aspartate
ASS adds aspartate
ATP
to citrulline.
AMP + PP
H₂N-
-NH2
Coo
H₂N-C-H
Answer Bank
CH2
CH2
→8-=-
coo
CH2
CH2
ΝΗ
Coo
fumarate
H-C-NH-C NH
Coo
argininosuccinate
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