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Biology 101-09 Practice Questions

87 Questions  I  By 63huncol
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Purdue University Calumet Biology 101-09 Practice Final Exam Questions

  
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1.  Which of the following is (are) true of natural selection>
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2.  Muscle cells in oxygen deprivation convert pyruvate to ________ and in this step gain
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3.  The electron transport chain energy is used to pump H+ ions into which location?
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4.  All of the following statements are representative of the second law of thermodynamics except
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5.  Which type of organelle is primarily involved in the synthesis of oils, phospholipis, and steriods?
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6.  Which of the following contains hydrolytic enzymes?
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7.  The question below is based on the stages of glucose oxidation listed below.A. stage I: glycolysisB. stage II: oxidation of pyruvate to acetyl CoAC. stage III: Krebs cycleD. stage IV: oxidative phosphorylation (chemiosmosis)Carbon dioxide is release during which stage(s)?
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8.  Which of the following is not considered to be a wear molecular interaction?
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9.  In most cells, there are electrochemical gradients of many ions across the plasma membrane even though there are usually one or two electrogenic pumps present in the membrane. The gradients of the other ions are most likely acounted for by
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10.  What is the term used for a change in a protein's three-dimensional shape or conformation due to disruption of hydrogen bonds, disulfide bridges, or ionic bonds?
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11.  How many structural isomers are possible for a substance having the molecular formula C5H12?
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12.  Hydrophobic substances such as vegetable oil are
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13.  Three or four of the following statements are true and correct. Which one, if any,is false?
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14.  Which of the following is possible due to the high surface tension of water?
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15.  An organism is discovered that consumes a considerable amount of sugar, yet does not gain much weight when denied air. Curiously, the consumption of sugar increases as air is removed from the organism's environment, but the organism seems to thrive even in the absence of air. When returned to normal air, the organism does fine. Which of the following best describes the organism?
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16.  A biologist ground up some plant leaf cells and then centrifuged the mixture to fractionate the organelles. Organelles in one of the heavier fractions could produce ATP in the light, while organelles in the lighter fraction could produce ATP in the dark. The heavier and lighter fractions are most likely to contain, respectively,
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17.  The difference between the sugar in DNA and the sugar in RNA is that the sugar in DNA
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18.  Tay-Sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large and complex lipids. Which cellular organelle must be involved in this?
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19.  Consider the following: Succinic acid dehydrogenase catalyzes the reaction of succinic acid to fumaric acid. The reaction is inhibited by malonic acid, which resembles succinic acid by cannot be catalyzed by succinic dehydrogenase. Increasing the ratio of succinic acid to malonic acid reduces the inhibitory effect of malonic acid. Which of the following is correct?
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20.  In an experiment studying photosynthesis performed during the day, you provide a plant with radioactive carbon (14C) dioxide as a metabolic tracer. The 14C is incorporated first into oxaloacetic acid. The plant is best characterized as a
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21.  Phosphofructokinase is an important control enzyme. All of the following statements concerning this enzyme are true except:
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22.  Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?
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23.  Polysaccharides, nucleic acids, and proteins are similar in that they
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24.  A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids, distilled water, equal to the volume of blood lost is transferred directly into one of his veins. What will be the most probable result of this transfusion?
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25.  What is the difference between covalent bonds and ionic bonds?
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26.  Which of the following statements in completely correct?
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27.  Of the following functions, which is most important for the glycoproteins and glycolipids of animal cell membranes?
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28.  Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the lack of photosystem II in these organisms would be
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29.  Use the following information to answer the question below. Thomas Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments to 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.An outcome of this experiment was to help determine
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30.  Pure, freshly-distilled water has a pH of 7. This means that
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31.  When blood glucose levels rise, the pancreas secretes insulin and as a result blood glucose levels decline. When blood glucose levels are low, the pancreas secretes glucagon and as a result blood glucose levels rise.Such regulation of blood glucose levels is an example of:
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32.  Which of the following is a trace element that is essential to humans?
33.  Evolution is biology's core theme that ties together all the other themes. This is because evolution
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34.  What is the chemical mechanism by which cells make polymers from monomers?
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35.  Research indicates that acid precipitation can damage living organisms by
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36.  Research suggests that side effects from Ritalin, the drug used to treat attention deficit disorder, may be caused by contamination of enantiomers, or molecules that
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37.  The next questions are based on the following information. A series of enzymes catalyze the reaction X→Y→Z→A. Product A binds to the enzyme that converts X to Y at a position remote from its active site. This binding decreases the activity of the enzyme.Substance A functions as
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38.  Who first names and described cells in 1665
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39.  All of the following statements are correct regarding the Calvin cycle of photosynthesis except:
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40.  Why does ice float in liquid water?
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41.  Which of the following would there be the greatest need for osmoregulation?
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42.  Cystic fibrosis is a genetic disease in the humans in which chloride ion channels in a cell membranes are missing or non functional.If a young male child has cystic fibrosis, which of the following would affect his fertility?
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43.  A major function of the mitochondrial inner membrane is the conversion of energy from electrons to the stored energy of the phosphate bond in ATP. To accomplish this function, this membrane must have all of the following features except
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44.  The atomic number of carbon is 6. 14C is heavier than 12C because the atomic nucleus of 14C contains
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45.  The molecular mass of glucose (C6H12O6) is 180g. To make a 0.5 M solution of glucose, you should do which of the following
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46.  During aerobic respiration, electrons travel downhill in which sequence?
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47.  A new organism is discovered in the forests of Costa Rica. Scientists there determine that the polypeptide sequence of hemoglobin from the new organism has 72 different amino acid differences from humans, 65 differences from a gibbon, 49 differences from a rat, and 5 differences from a frog. This data suggests that the new organism
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48.  A controlled experiment is one in which
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49.  ATP is often an allosteric inhibitor of key enzymes in catabolic pathways. Which of the following statements in inconsistent with the role of ATP?
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50.  Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. How is lactose classified?
51.  The ionic bond of sodium chloride is formed when
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52.  Which of the following statements regarding events in the functioning of photosystem II is false?
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53.  In a hypothetical world, every 50 years people over 6 feet tall are eliminated from the population. Based on your knowledge of natural selection, you would predict that the average height of the human population will
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54.  All of the following statements are true except:
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55.  What maintains the secondary structure of a protein?
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56.  Which of the following statements about the cytoskeleton is true?
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57.  Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through
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58.  When biologists wish to study the internal ultrastructure of cells, they most likely would use
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59.  All of the following statements about NAD+ are true except:
60.  Which of the following best describes the relationship between the atoms described below?    Atom 1                    Atom 2        1                               3          H                              H        1                               1
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61.  If the pH of a solution is increased from pH 5 to pH 7, it means that the
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62.  In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from
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63.  Altering which of the following levels of structural organization could change the function of a protein?
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64.  The first law of thermodynamics states that energy can be neither created nor destroyed. For living organisms, which of the following is an important consequence of the first law?
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65.  All of the following statements about glycolysis are true except:
66.  An organism with a cell wall would have the most difficulty doing which process?
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67.  Who proposed that the membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids?
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68.  The chemical reactions involved in respiration are virtually identical between prokaryotic and eukaryotic cells. In eukarotic cells, ATP is synthesized primarily on the inner membrane of the mitochondria. Where are the corresponding reactions likely to occur in prokaryotic respiration?
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69.  Consider a pohysaccharide consisting of 576 glucose molecules. The total hydrolysis of the poly saccharide would result in the production of
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70.  The movement of potassium into an animal cell requires
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71.  Which of the following is a major cause of the size limits for certain types of cells?
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72.  Humans can digest starch but not cellulose because
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73.  Which of the following is true regarding catabolic pathways?
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74.  The nuclear lamina is an array of filaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you expect to be the most likely consequence?
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75.  Elecrons exist only at fixed levels of potential energy. However, if an atom absorbs sufficient energy, a possible result is that
76.  The concept of vitalism is based on a belief in a life force outside the jurisdiction of physical and chemical laws. According to this belief, organic compounds can arise only within living organisms. Which of the following did the most to refute the concept of vitalism?
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77.  The dynamics of any ecosystem include the following major processes:
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78.  The hydrogenation of vegetable oil would result in which of the following?
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79.  Which of these is a correct representation of the hierarchy of biological organization from least to most complex?
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80.  A young relative of yours has never had much energy. He goes to a doctor for help and is sent to the hospital for some tests. There they discover his mitochondria can use only fatty acids and amino acids for respiration, and his cells produce more lactate than normal. Of the following, which is the best explanation of his condition>
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81.  What kinds of molecules pass through a cell membrane most easily?
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82.  Which of the following statements is (are) true about the phosphate ion?
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83.  Which of the following is a correct definition of a kilocalorie?
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84.  A double-stranded DNA molecule contains a total of 120 purines and 120 pyrimidines. This DNA molecule could be composed of
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85.  Carbon dioxide (CO2) is released during which of the following stages of cellular respiration?
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86.  Which of the following properties or processes do we associate with living things?
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87.  If atom 6x (atomic number 6) were allowed to react with hydrogen, the molecule formed would be
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