BIO 3100 Final Exam Questions with answers

BIO 3100 Final Exam Questions with
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answers

A vitamin that acts as a prosthetic group is - CORRECT
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ANSWERS ✔✔B2 |\




A protein-substrate interaction occurs at Kd=10^-10 M.
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This is probably - CORRECT ANSWERS ✔✔Numerically
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below the enzyme-substrate interaction region
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Iron in heme is held - CORRECT ANSWERS ✔✔Coordinated
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covalently to 4 pyrrole units
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An aa not required in an intrinsically disordered protein is
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- CORRECT ANSWERS ✔✔Cys
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The support for O2 in myoglobin is provided by -
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CORRECT ANSWERS ✔✔His and iron |\ |\ |\ |\




In uncompetitive inhibition - CORRECT ANSWERS
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✔✔Substrate does not compete with inhibitor |\ |\ |\ |\ |\

,Covalent modification won't occur on - CORRECT
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ANSWERS ✔✔Cys |\




When there is adenylylation by ATP - CORRECT ANSWERS
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✔✔Pyrophosphate is released |\ |\




Lipid synthesis takes place in the - CORRECT ANSWERS
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✔✔SER


Gln is converted to Glu in liver by the enzyme - CORRECT
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ANSWERS ✔✔Glutaminase |\




Glu is converted to Gln - CORRECT ANSWERS ✔✔In 2
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steps with glutamine synthetase
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Pyruvate is converted to Ala using as source of nitrogen -
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CORRECT ANSWERS ✔✔Glutamate |\ |\




Asp is produced in the mitochondria from - CORRECT
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ANSWERS ✔✔Oxaloacetate and Glu|\ |\ |\




The number of oxygens in carbamoyl phosphate is -
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CORRECT ANSWERS ✔✔5 |\ |\

, The stage that uses ATP in E. coli protein synthesis is -
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CORRECT ANSWERS ✔✔Activation of aa|\ |\ |\ |\




One characteristic of the three anticodons of the stop
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codons is that together they have - CORRECT ANSWERS
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✔✔4U


The most important reagent for the release of a new
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polypeptide is - CORRECT ANSWERS ✔✔H2O |\ |\ |\ |\ |\




Attachment of a new aa in protein synthesis occurs by
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nucleophilic attack from the - CORRECT ANSWERS ✔✔A
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site to the P site
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The number of hydrophobic aa in the signal sequence is -
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CORRECT ANSWERS ✔✔10-15 |\ |\




The name of a sugar carrier is - CORRECT ANSWERS
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✔✔Dolichol


The ratio of total reactions to reversible reactions in the
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urea cycle is (do not include the intermediate as a
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reaction) - CORRECT ANSWERS ✔✔4:0
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