PORTAGE LEARNING CHEM 210 - MODULE 8 EXAM

PORTAGE LEARNING CHEM 210 - MODULE 8 EXAM. Portage Learning Chem 210 - Module 8 exam. True or False: The majority of reactions of the urea cycle occur in the cytosol. TRUE True or False: NADH yields 1.5 ATP molecules after donating electrons and hydrogenatoms to the electron transfer chain (ETC). FALSE True or False: GTP is invested in the urea cycle. FALSE True or False: There are six complexes associated with the ETC. FALSE True or False: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial matrix to the intermembrane space. FALSE The urea cycle involves reactions (only those in the cyclic portion of the process). 1 2 Question 1 3 / 3 pts Question 2 3 / 3 pts Question 3 3 / 3 pts Question 4 3 / 3 pts Question 5 3 / 3 pts Question 6 3 / 3 pts Question 9 3 / 3 pts 3 4 5 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 D.BOTH AAND B Fumarate is converted to for it to reenter the mitochondrion. Ornithine Citrulline Malate Fumarase Ammonia 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 Question 7 3 / 3 pts Question 8 3 / 3 pts B. HIGH DENSITY OF NITROGEN ATOMS is both a component of the urea cycle and the citric acid cycle. Malate Acetyl-CoA Citrate Fumarate None of the above FUMARATE Deamination of an amino acid results in a carbon skeleton and in the production of . A. NH2 B. NH Question 10 3 / 3 pts Question 11 3 / 3 pts C. NO2 D. NH3 E. NH4+ E. NH4+ The following chemical species is . Ammonium Fumarate Arginine Argininosuccinate Urea UREA FADH2 donates electrons and H+ to complex . I I I Question 12 3 / 3 pts Question 13 3 / 3 pts II I I V V II Which of the ETC complexes do pump H+ ions? Complex I Complex III Complex IV All of the above None of the above ALL OF THE ABOVE What protein shuttles electrons from Complex III to Complex IV? NADH dehydrogenase Cytochrome C Fumarase Cytochrome B None of the above CoQ In what portion of the mitochondrion does the CAC take place? Matrix Intermembrane space Question 14 3 / 3 pts Question 15 3 / 3 pts Question 17 3 / 3 pts Inner membrane Outer membrane Both B and C MATRIX At which complex does the following reaction take place? O2 + 4e- + 4H+ → → 2H2O Complex I Complex II Complex III Complex IV Both A and B COMPLEX IV During the electron transport chain, protons are pumped from in the mitochondria. From the intermembrane space to the cytosol From the intermembrane space to the matrix From the matrix to the intermembrane space From outside of the cell to the cytosol From outside of the cell to the matrix Question 18 3 / 3 pts Question 19 3 / 3 pts FROM THE MATRIX TO THE INTERMEMBRANE SPACE Energy released is utilized for the synthesis of ATP. As protons flow through ATP synthase and back into the mitochondrial matrixIn the digestion of proteins In the degradation of carbohydratesIn the formation of ATP None of the above 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 A. FO An individual with the MERRF disease, tend to have symptoms of . Question 20 3 / 3 pts Question 21 3 / 3 pts Question 22 3 / 3 pts Muscle weakness Elevated Blood pressureSwollen feet Red eyes None of the above 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 A.INNER MEMBRANE What process results in ATP formation? A. H2O in ATP synthase