2009_Practice_Quiz_on_Ch_26

2009_Practice_Quiz_on_Ch_26 - BMB 402H Spring 2009 Practice...

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BMB 402H Spring 2009 Practice Quiz on Chapter NAME: _____________________________________________ 1. One or more of the following reactions/pathways require(s) pyridoxal-5’-phosphate. Circle the answer choice(s) of all the correct answer(s). One point will be deducted for each incorrect answer you choose. (3 points) (a). Synthesis of ornithine from glutamate- γ -semialdehyde (b). Synthesis of proline from glutamate (c). Synthesis of methionine from homocysteine (d). Synthesis of serine from glycerate-3-phosphate (or 3-phospho-glycerate) (e). γ -cystathionase reaction that converts cystathionine to α -ketobutyrate and cysteine (f). Synthesis of tetrahydrofolate from folic acid (g). Deamination of serine to yield pyruvate and ammonia (h). Synthesis of tyrosine from phenylalanine 2. What is the type of feedback control mechanism employed by E. coli glutamine synthetase? (1 point) 3. First, name four nonessential amino acids in humans that are each synthesized in one step from another amino acid. Next, use chemical structures to describe the reaction for the synthesis of any one such
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This note was uploaded on 10/19/2009 for the course B M B 402H taught by Professor Kao during the Spring '09 term at Penn State.

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2009_Practice_Quiz_on_Ch_26 - BMB 402H Spring 2009 Practice...

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