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

Exam #4 (100 points) – Version A 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 exam early, you may leave the room quietly. This exam consists of 50 multiple choice questions. Select the best answer to each question and enter your answer on a pink Scantron form. Be sure to indicate on the Scantron form whether you have version A or 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. Cytosol b. Mitochondrial Matrix c. Intermembrane Space d. Mitochondrial Stroma 2. Which of the following best describes the products of the catabolism of glucose (C6H12O6) through glycolysis and the Citric Acid Cycle? a. 6 CO2 + 6 O2 b. 3 CO2 + 3 H2O c. 3 CO2 + 1 lactate d. 6 CO2 + 6 H2O 3. During β-oxidation, the fatty acid chains of triacylglycerols are degraded to form many molecules of: a. acetyl-CoA b. glucose-1-phosphate c. pyruvate d. oxaloacetate 4. In the first step of the citric acid cycle, which molecule combines with the carbons from Acetyl CoA to form citrate? a. Fumarate b. Malate c. Oxaloacetate d. Succinate 5. In the presence of oxygen, what happens to pyruvate? a. It is converted to Acetyl CoA and transported into mitochondria b. It is converted to ethanol to regenerate NAD+ c. It is converted to lactate to regenerate NAD+ d. It is attached