sample exam 2

Sample exam 2 - Copyright 2006 Texas A&M University BIOL111 MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers

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© Copyright 2006 Texas A&M University BIOL111 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Use the following information to answer the questions below. Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of algae to different wavelengths of light. He added aerobic bacteria and then noted in which areas the bacteria congregated. He noted that the largest groups were found in the areas illuminated by the red and blue light. 1) If you ran the same experiment without passing light through a prism, what would you predict? 1) _______ A) The bacteria would be relatively evenly distributed along the algal filaments. B) There would be no difference in results. C) The number of bacteria present would decrease due to an increase in the carbon dioxide concentration. D) The number of bacteria would decrease due to a decrease in the temperature of the water. E) The number of bacteria present would increase due to an increase in the carbon dioxide concentration. Figure 12.2 2) If the cell whose nuclear material is shown in Figure 12.2 continues toward completion of mitosis, which of the following events would occur next? 2) _______ A) cell membrane synthesis B) formation of telophase nuclei C) nuclear envelope breakdown D) spindle fiber formation E) synthesis of chromatids 3) Which of the following terms belongs with the words synapsis, tetrads, and chiasmata? 3) _______ A) haploid B) autosomes C) crossing over D) fertilization E) prophase II
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Copyright 2006 Texas A&M University 4) Which metabolic pathway is common to both cellular respiration and fermentation? 4) _______ A) the citric acid cycle B) chemiosmosis C) glycolysis D) oxidative phosphorylation E) the oxidation of pyruvate to acetyl CoA 5) How do cells at the completion of meiosis compare with cells that have replicated their DNA and are just about to begin meiosis? 5) _______ A) They have the same number of chromosomes and half the amount of DNA. B) They have half the number of chromosomes and one-fourth the amount of DNA. C) They have half the amount of cytoplasm and twice the amount of DNA. D) They have twice the amount of cytoplasm and half the amount of DNA. E) They have half the number of chromosomes and half the amount of DNA. 6) Which of the following is (are) true concerning cyclin-dependent kinase (Cdk)? 6) _______ A) Cdk is inactive, or "turned off," in the presence of cyclin. B) Cdk is an enzyme that attaches phosphate groups to other proteins. C) Cdk is present throughout the cell cycle. D) Both A and B are true. E) Both B and C are true. 7) Which of the following organisms does not reproduce cells by mitosis and cytokinesis? 7) _______ A) cow B) mushroom C) cockroach D) bacterium E) banana tree 8) How many carbon atoms are fed into the citric acid cycle as a result of the oxidation of one molecule of pyruvate? 8) _______ A) 2 B) 8 C) 10 D) 4 E) 6
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This note was uploaded on 04/09/2010 for the course BIOL 111 taught by Professor Rizzo during the Spring '07 term at Texas A&M.

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Sample exam 2 - Copyright 2006 Texas A&M University BIOL111 MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers

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