The committed step in the urea cycle is: A、condensation of citrulline with aspartate B、export of citrulline from the matrix C、cleavage of urea from arginine D、Formation of carbamoyl phosphate
Q: Which amino acids are involved in the urea cycle but not the genetic code?
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Q: Can we find homologs for the other enzymes in the urea cycle?
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Q: Whatis the purpose of the urea cycle? Include a net reaction for the urea cycle.
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Q: Describe in detail, the key steps of the urea cycle.
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- Which of the following statements regarding the urea cycle is true? (A) Fumarate acts as a connecting link between urea cycle and the CAC.(B) The urea cycle occurs solely in the mitochondria.(C) Citrulline and arginine reacts to form argininosuccinate.(D) Ornithine formed in the last reaction of the urea cycle is excreted from the body along with urea.(E) The purpose of the urea cycle is to produce energy (4 ATP per ammonia that enters) for the liver.Which of the following is a substrate in the urea cycle? a. fumarate b. glutamate c. aspartate d. α-ketoglutarateIn the Urea Cycle, Give the name of Letter A, B, C, D, E, and F.
- By definition, essential amino acids are not synthesized by an organism. Arginine is classified as an essential amino acid in infants, even though it is part of the urea cycle. Explain.Using the model above, illustrate the urea cycle.Why is the urea cycle important? Give typing answer with explanation and conclusion
- In the urea cycle, urea is synthesized from carbon dioxide and____________________.What enzyme catalyzes the committed reaction of the urea cycle? carbamoyl phosphate synthetase II carbamoyl phosphate dehydrogenase I carbamoyl phosphate synthetase I carboxyphosphate synthetase II carboxyphosphate synthetase IDefine the following terms:a. urea cycleb. Krebs bicyclec. carbamoyl phosphated. ureotelic organisme. ornithine translocase
- Define the following terms: a. ketogenic amino acid b. glucogenic amino acid c. L-amino acid oxidase d. Krebs urea cycle e. CPSIWhy is the Urea cycle important in protein catabolism? A. Urea transports amino acids to the liver. B. Urea synthesis prevents ammonium toxicity C. Urea is unstable and rapidly metabolized by the liver. D. Urea is a source of amino acidsidentify the major reactants and products of the urea cycle.