BIOL 4087 : Exam 4 Practice Tests With Correct Answers
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Name (please print: phosphatidyl choline, phosphatidyl ethanolamine, phosphatidyl inositol, phosphatidyl serine, phosphatidyl serine and phosphatidyl ethanolamine, phosphatidyl inositol and phosphatidyl choline, phosphatidyl choline and phosphatidyl serine, phosphatidyl ethanolamine and phosphatidyl inositol. He knows that all are made from a common precursor, that the pathway is branched, and neither uga, una, or aga can inhibit the enzyme catalyzing the committed step for their synthesis. However, their immediate common precursor oga can inhibit the enzyme. What type of inhibition is this: the researcher decided to clone the gene encoding the enzyme catalyzing the committed step in shikimic acid biosynthesis in e. coli. However, the recombinant enzyme was inhibited only by trp, even though trp, tyr, or phe can partially inhibit the pathway in vivo. Use the following choices to answer questions 28-30: respiratory distress syndrome, tay-sachs disease, familial hypercholesterolemia, lesch-nyhan syndrome, xeroderma pigmentosum, the urea cycle, heme biosynthesis, heme degradation.
