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BCH 369 TEST 3 QUESTIONS WITH ALL ANSWERS CERTIFIED 2 Exam (elaborations) BCH 369 EXAM 4 QUESTIONS WITH REVISED ANSWERS 3 Exam (elaborations) BCH 369 EXAM 3 QUESTIONS WITH ALL REVISED ANSWERS 4 Exam (elaborations) BCH 369 CHAPTER 7 TEST QUESTIONS WITH ANSWERS ALL REVISED AND UPDATED

BCH4024 EXAM 1 QUESTIONS WITH CERTIFIED ANSWERS What properties of β-strands forms beta sheets - Answer-hydrogen bond Where is the hydrogen bonds in a β-sheet? - Answer-between the backbone of C=O of one chain and the N-H of another chain segment Where is the hydrogen bonds in a α-helix? - Answer-all hydrogen bonds involve the same element of polypeptide chain Where are the R-groups of neighboring residues in a β-strand? - Answer-opposite directions The peptide bonds of adjacent res...

BCH4024 EXAM 1 QUESTIONS WITH ALL ANSWERS REVISED At equilibrium there is more ----------- than of d glucose and very little linear. Beta is more stable - Answer-beta, alpha You have the standard, beta d glucose, but there are derivative like (with charge) and both of which are beta and d series - Answer-gluconate, gluconolactone - is a combination of alpha and beta glucose that produces a 1,4 linkage - Answer- Maltose Sucrose is a sugar because its glucose and fructose reducing e...

BCH4024 TEST 1 QUESTIONS WITH COMPLETE SOLUTIONS Isoelectric Point of Amino Acids - Answer-At the isoelectric point (pI = pH), average charge equals 0 The Henderson-Hasselbalch Eqn. can be applied at pI for both equilibrium dissociations. Two dissociation reactions involve the net zero charge species HAH+ <--> HA + H+ HA <--> A- + H+ (Isoelectric Point of Amino Acids) Two Henderson-Hasselbalch equations can be summed to solve for pI. - Answer-2pI=pKa1+ pKa2 +log [HA] +log...

BCH 361 TESTED QUESTIONS WITH REVISED ANSWERS What enzyme is activated by direct association with an active G protein? - Answer-*A) adenylate cyclase* C) protein kinase A B) cAMP phosphodiesterase D) protein kinase G Activity of the Ras protein is analogous to the in terms of its ability to bind GTP. - Answer-*A) G protein α subunit* C) G protein γ subunit B) G protein β subunit D) calmodulin Which of the following metabolic pathways is carried out only in the liver? - Answer-A) ...

BCH 361 Ch. 7 TEST QUESTIONS WITH CORRECT ANSWERS Match the condition w/ the statement that describe it. This condition will result in the highest rate. A. [S]= 10Km B. [S]= Km C. [S]= 0.1Km - Answer-A Match the condition w/ the statement that describe it. Doubling [S] will have little effect on the rate. A. [S]= 10Km B. [S]= Km C. [S]= 0.1Km - Answer-A Match the condition w/ the statement that describe it. About 90% of the active sites are occupies by substrate A. [S]= 10Km B. [...

BCH 361 Ch. 6 TEST QUESTIONS WITH ANSWERS – UPDATED!! What other aspects of a catalyzed rxn are diff from the uncatalyzed rxn? A. the overall rxn B. the mechanism C. delta H rxn - Answer-B Is this statement true for biochemical standard state, the chemical standard state, or both? ∆G° - Answer-the chemical standard state Is this statement true for biochemical standard state, chemical standard state, or both? the pressure is 1 atm - Answer-both Is this statement true for bioche...

BCH 361 CHAPTER 18 TEST QUESTIONS WITH ALL CORRECT ANSWERS Beriberi involves a reduction in the activity of pyruvate dehydrogenase complex. Which enzyme(s) in the complex is/are specifically affected in this disease through loss or reduction of a prosthetic group? - pyruvate dehydrogenase component (E1) When pyruvate initially binds to the pyruvate dehydrogenase complex, which of the following statements is TRUE? - The cofactor of E3 is in its reduced form Which of the following is NOT a co...

BCH 361 CH 2 EXAM QUESTIONS WITH ALL CORRECT ANSWERS The van der Waals contact distance between two participating atoms is usually in the range of angstroms. a) 0.5 to 0.8 b) 2 to 5 a) 1 to 3 d) 4 to 6 e) 3 to 4 - Answer-e In an electrostatic interaction, the strength of the bond is: a) proportional to the charges on the two interacting atoms. b) proportional to the dielectric constant of the medium. c) inversely proportional to the distance between the two atoms. d) Both the first ...

BCH 361 ICLICKER QUESTIONS WITH REVISED AND UPDATED ANSWERS A bacterium was found to have a defective DNAligase. Which aspect of DNA replication would bemost affected by this? A. Synthesis of leading strand B. Synthesis of lagging strand C. Both strands would be affected equally D. It has no affect on DNA replication. - Answer-B. Synthesis of lagging strand Which of the following should be the sequence of the template strand DNA if a mRNA with the sequence 5'-UGCAGUA-3' is needed?...