Bch403 - Study guides, Class notes & Summaries

BCH403 PRACTICE TEST QUESTIONS WITH CERTIFIED ANSWERS E1: Which of the following statements is true regarding the hydrophobic effect? - Answer-Non - Polar molecules are driven together in order to maximize the entropy of water. E1: The peptide in question 17 is dissolved into a solution that has a pH of 6.5. Under these conditions the net charge of the peptide is - Answer-+1 E1: A glycine residue is disruptive to the stability of an a-helix or a b-strand because: - Answer-It's R-group is...

BCH403 FINAL EXAM QUESTIONS WITH REVISED ANSWERS – UPDATED!! Which of the following is NOT a potential function of specific transcription factors? - Answer-Melt promoter DNA The following peptide is dissolved in a solution of pH 7. M-D-L-P-S-K. What is the peptide's net charge and can this peptide be purified by ion exchange chromatography? - Answer-0, and it cannot because it is at the isoelectric point. The process by which hydrophobic molecules are driven together, therefore maximiz...

E1: A biochemical reaction, without a catalyst or thermodynamic coupling, takes 50 years to reach a state of equilibrium. Without more information, we cannot make a determination on either the value of Keq constant or the positive or negative value of the deltaG of the reaction. - ANSWER-FALSE E1: Due to its small size, the amino acid glycine can be found in tight turns in a protein structure - ANSWER-TRUE E1: The deltaG of a reaction is defined as the energy required to bring the concentra...

BCH403 FINAL EXAM QUESTIONS WITH REVISED ANSWERS – UPDATED!! translation. - Answer-Release factors Argonaute: - Answer-Selects which strand of miRNA will be used to target mRNA When run on an agarose gel, DNA will migrate through the gel: - Answer-Naturally because DNA is already overwhelmingly negative A technique commonly used to separate proteins based solely on length is called: - Answer-SDS-Polyacrylamide gel electrophoresis (SDS-PAGE) Alternative splicing: - Answer-requires...

BCH403 PRACTICE TEST QUESTIONS WITH CERTIFIED ANSWERS E6: Which one of the following mRNA sequences contain an arginine residue as the 4th amino acid in reading frame 3? A codon table is located on the last page of this exam booklet. - Answer-5' UUUGACCGACCAGAACCC 3' E6: Which one of the following is not involved in translation initiation prokaryotes? - Answer-Methionyl-tRNA E6: Which of the following post-translational modifications is most common in humans? - Answer-Phosphorylation ...

T/F Under physiological conditions, a catabolic pathway will run backwards when there is a high concentration of ATP. - ANSWER-False T/F ATP is the energy currency of the cell. - ANSWER-True Which one of the following statements is correct regarding metabolic pathways? - ANSWER-Metabolic pathways always end at a specific molecule. _______ is a bidirectional glucose transporter. - ANSWER-GLUT2 The glycolytic enzyme that is responsible for trapping glucose in a skeletal muscle cell is ______...

BCH403 Final Exam Questions And Answers E1: A biochemical reaction, without a catalyst or thermodynamic coupling, takes 50 years to reach a state of equilibrium. Without more information, we cannot make a determination on either the value of Keq constant or the positive or negative value of the deltaG of the reaction. - Answer-FALSE /.E1: A chromatography column was used to try to purify a protein that is 10 kilodaltons in size. Some of the illusion fractions were run on SDS page and are...

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