CHEM 210 Exam 8- Practice Solution Manual Fully Solved Latest Update () Already Passed

CHEM 210 Exam 8- Practice Solution Manual Fully Solved Latest Update () Already Passed T/F the majority of reactions of the urea cycle occur in the cytosol - Answers true T/F NADH yields 1.5 ATP molecules after donating electrons and hydrogen atoms to the electron transport chain (ETC) - Answers false T/F GTP is invested in the urea cycle - Answers false T/F there are six complexes associated with the ETC - Answers false T/F in the production of ATP via ATP synthase, the H+ ions move from the mitochondrial matrix to the intermembrane space - Answers false the urea cycle involves ____ reactions (only those in the cyclic portion of the process) A. 1 B. 2 C. 3 D. 4 E. 5 - Answers D. 4 which amino acids are involved in the urea cycle A. ornithine B. aspartate C. threonine D. both A and B E. both A and C - Answers D. both A and B fumarate is converted to ___ for it to reenter the mitochondrion A. ornithine B. citrulline C. malate D. fumarase E. ammonia - Answers C. malate urea is useful for excreting nitrogen from cells due to its: A. ability to form london forces B. high density of nitrogen atoms C. large size D. low melting point E. both B and C - Answers B. high density of nitrogen atoms ____ is both a component of the urea cycle and the citric acid cycle A. malate B. acetyl-CoA C. citrate D. fumarate E. none of the above - Answers D. fumarate deamination of an amino acid results in a carbon skeleton and in the production of ____ A. NH2 B. NH C. NO2 D. NH3 E. NH4+ - Answers E. NH4+ FADH2 donates electrons and H+ to complex___ A. I B. II C. III D. IV E. V - Answers B. II which of the ETC complexes do pump H+ ions? A. complex I B. complex III C. complex IV D. all of the above E. none of the above - Answers D. all of the above what protein shuttles electrons from Complex III to Complex IV? A. NADH dehydrogenase B. cytochrome C (CoQ) C. fumarase D. cytochrome B E. none of the above - Answers B. cytochrome C (CoQ) in what portion of the mitochondrion does the CAC take place? A. matrix B. intermembrane space C. inner membrane D. outer membrane E. both B and C - Answers A. matrix at which complex does the following reaction take place? O2 + 4e- + 4H+ -> 2H2O A. complex I B. complex II C. complex III D. complex IV E. both A and B - Answers D. complex IV during the electron transport chain, protons are pumped from the ___ in the mitochondria A. from the intermembrane space to the cytosol B. from the intermembrane space to the matrix C. from the matrix to the intermembrane space D. from outside of the cell to the cytosol E. from outside of the cell to the matrix - Answers C. from the matrix to the intermembrane space energy released ____ is utilized for the synthesis of ATP A. as protons flow through ATP synthase and back into the mitochondrial matrix B. in the digestion of proteins C. in the degradation of carbohydrates D. in the formation of ATP E. none of the above - Answers A. as protons flow through ATP synthase and back into the mitochondrial matrix the H+ ions flow through what part of the ATP synthase? A. Fo B. F1 C. F2 D. stator E. both A and C - Answers A. Fo an individual with the MERRF disease, tend to have symptoms of ____ A. muscle weakness B. elevated blood pressure C. swollen feet D. red eyes E. none of the above - Answers A. muscle weakness ATP synthase is located in the ___ of mitochondria A. inner membrane B. intermembrane space C. outer membrane D. both A and B E. both B and C - Answers A. inner membrane what process results in ATP formation? A. H2O in ATP synthase B. GTP is produced first C. heat applied to ATP synthase D. rotation of ATP synthase E. none of the above - Answers D. rotation of ATP synthase which of the following is not a part of ATP synthase? A. F B. Fo C. F1 D. F2 E. both A and D - Answers E. both A and D T/F FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to the electron transfer chain (ETC) - Answers false