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Quiz 1 Sp 2011 KEY - QUIZ I SPRING 2011 Key Multiple...

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QUIZ I SPRING 2011 Key Multiple Choice (2 pts each) 1. In transamination reactions, the function of pyridoxal phosphate (PLP) is which of the following? (a) Facilitate removal of an amino group from an amino acid to generate the α-keto acid (b) Accept a one-carbon group from the amino acid to generate the α-keto acid (c) Coenzyme for hydroxylase enzymes required for hormone synthesis (d) Acceptor of an amino group from an amino acid (e) a & d 2. Which of the following statement(s) correctly describes the role of vitamin B6 in the synthesis of neurotransmitters? (a) PLP binds to dihydroxyphenylalanine (DOPA) decarboxylase which facilitates the decarboxylation of DOPA to form dopamine (b) PLP binds to glutamate which facilitates the deamination of glutamate to form gamma amino butyric acid (GABA) (c) PLP binds to tryptophan hydroxylase for the formation of 5-hydroxytryptophan in the serotonin synthesis pathway (d) b & c (e) none of the above 3 . Surgical patients who are vitamin C deficient may have impaired wound healing because
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