Biochemistry Practice Quiz9

Biochemistry Practice Quiz9 - Biochemistry Practice Quiz9...

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Biochemistry Practice Quiz9 BCH 4024 1) The rate-determining step and committing step in the biosynthesis of cholesterol is the formation of: a) squalene b) mevalonate c) isopentenyl pyrophosphate d) hydroxymethylglutaryl-CoA e) malate 2) Which of the following is not one of the nine dietary essential amino acids? a) phenylalanine b) leucine c) isoleucine d) cysteine e) threonine 3) The biosynthesis of one of the nonessential amino acids requires tetrahydrofolate. That amino acid is: a) alanine b) proline c) asparagine d) glutamate e) glycine 4) Which of the following compounds is a common intermediate in the synthesis of ketone bodies and cholesterol? a) succinyl-CoA b) carnitine c) 3-hydroxy-3-methylglutaric acid d) ß-hydroxybutyrate e) 3-hydroxy-3-methylglutaryl-CoA 5) Which position of cytoplasmically-synthesized palmitic acid file:///W|/bch4024/examsandquizzes_summer2003.html (90 of 94) [5/7/2003 4:36:12 PM] file:///W|/bch4024/examsandquizzes_summer2003.html is(are) formed from C02? a) carbon 1
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Biochemistry Practice Quiz9 - Biochemistry Practice Quiz9...

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