BIO 353 - Cell Biology Exam 4 Version A - Jennifer Hackney-Price

BIO 353 - Cell BiologySpring 2019Version AExam #4 (100 points)-This is a closed-book examination. Collaboration, of the use of books, notes, of handouts, is not allowed.Please turn off and put away all cell phones, pagers, and other electronic devices. If you finish the examearly, you may leave the room quietly.This exam consists of 50 multiple choice questions. Select the best answer to each question and enteryour answer on a pink Scantron form. Be sure to indicate on the Scantron form whether you have version Aor version B of the exam. If you make a mistake, be careful to erase the mistake completely. 1.Where in the cell does the citric acid cycle occur?a. Cytosolb. Mitochondrial Matrixc. Intermembrane Spaced. Mitochondrial Stroma 2.Which of the following best describes the products of the catabolism of glucose (CHO) through6126glycolysis and the Citric Acid Cycle?a. 6 CO+ 6 O22b. 3 CO+ 3 HO22c. 3 CO+ 1 lactate2d. 6 CO+ 6 HO22 3.During β-oxidation, the fatty acid chains of triacylglycerols are degraded to form many molecules of:a. acetyl-CoAb. glucose-1-phosphatec. pyruvated. oxaloacetate 4.In the first step of the citric acid cycle, which molecule combines with the carbons from Acetyl CoA toform citrate?a. Fumarateb. Malatec. Oxaloacetated. Succinate 5.In the presence of oxygen, what happens to pyruvate?a.It is converted to Acetyl CoA and transported into mitochondriab.It is converted to ethanol to regenerate NAD+c.It is converted to lactate to regenerate NAD+d.It is attached to carnitine so that it can be imported into mitochondria 1 BIO 353 - Cell BiologySpring 2019Questions 6-7 refer to the following reaction:FumarateSuccinate 6.Which enzyme catalyzes the reaction shown above?a. Succinate dehydrogenaseb. Succinyl CoA Synthetasec. Fumarased. Fumarate dehydrogenase 7.Where in the cell does this reaction occur?a. Cytosolb. Mitochondrial matrixc. Inner mitochondrial membraned. Thylakoid membrane 8.Which of the following steps or processes in aerobic respiration include the production of carbondioxide?a. breakdown of glycogenb. glycolysisc. oxidative rsion of pyruvate to acetyl CoA 9.Which of the following statements best describes the process of chemiosmosis?a. The movement of H+ions across a membrane is used to facilitate the transfer of electrons fromNADH to oxygen.b.The transfer of electrons through an electron transport chains results in the reduction of water toform oxygen.c.The transfer of electrons from NADH to oxygen is used to directly drive the attachment ofphosphate to ADP to form ATP.d.The formation of ATP depends on the movement of H+ions across a membrane.