Homework Answers
What enzymes catalyze the metabolism of the amino acids cysteine and tryptophan?
In the case of cysteine, there are four main enzymes involved on its metabolism
•Cysteine dioxygenase
•γ-glutamyl-cysteine synthetase
•Cysteine-sulfinate decarboxylase
•Aspartate aminotransferase
On the other hand, the main enzymes involved in the tryptophan metabolism is the tryptophan oxygenase and the tryptophan pyrrolase which is also called Tryptophan dioxygenase
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Does this make tyrosine an essential amino acid in indivduals with
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2) In addition to phenylalanine, high levels of what other
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____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
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ANSWE THE FOLLOWING QUESTIONS BASED ON THE TEXT ABOVE:
1) The amino acid tyrosine is synthesized from phenylalanine.
Does this make tyrosine an essential amino acid in indivduals with
PKU?
2) In addition to phenylalanine, high levels of what other
compound(s) might show up in the urine of those with PKU?
Why?
THE GENETIC REVOLUTION PKU Phenylketonuria (PKU), the recessively inherited genetic disorder of amino acid metabolism, is regarded as the gold-standard genetic disorder. Its discovery in 1935 laid the...
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
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