Biology 101-09 Practice Questions

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Purdue University Calumet Biology 101-09 Practice Final Exam Questions

  
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1.  The ionic bond of sodium chloride is formed when
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2.  What kinds of molecules pass through a cell membrane most easily?
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3.  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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4.  If atom 6x (atomic number 6) were allowed to react with hydrogen, the molecule formed would be
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5.  Which of the following is possible due to the high surface tension of water?
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6.  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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7.  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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8.  Why does ice float in liquid water?
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9.  The atomic number of carbon is 6. 14C is heavier than 12C because the atomic nucleus of 14C contains
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10.  During aerobic respiration, electrons travel downhill in which sequence?
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11.  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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12.  Which of the following statements is true about buffer solutions?
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13.  How many structural isomers are possible for a substance having the molecular formula C5H12?
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14.  Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma. This damage will have the most direct effect on which of the following processes?
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15.  A controlled experiment is one in which
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16.  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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17.  Pure, freshly-distilled water has a pH of 7. This means that
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18.  Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?
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19.  Upon chemical analysis a particular protein was found to contain 556 amino acids. How many peptide bonds are present in this protein?
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20.  Which of the following contain the 9 + 2 arrangement of microtubules?
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21.  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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22.  Why is it important that an experiment include a control group?
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23.  When biologists wish to study the internal ultrastructure of cells, they most likely would use
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24.  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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25.  One of the buffers that contribute to pH stability in human blood is carbonic acid (H2CO3). Carbonic acid is a weak acid that when placed in an aqueous solution dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+). Thus,H2CO3 ⇔ HCO3- + H+If the pH of the blood increases, one would expect
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26.  An organism with a cell wall would have the most difficulty doing which process?
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27.  Collecting data based on observation is an example of ________; analyzing this data to reach a conclusion is an example of __________ reasoning.
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28.  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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29.  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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30.  The hydrogenation of vegetable oil would result in which of the following?
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31.  Humans can digest starch but not cellulose because
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32.  The movement of potassium into an animal cell requires
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33.  All of the following statements are true except:
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34.  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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35.  What is the difference between covalent bonds and ionic bonds?
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36.  Which of the following is true regarding catabolic pathways?
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37.  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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38.  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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39.  Which of the following properties or processes do we associate with living things?
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40.  Which type of organelle is primarily involved in the synthesis of oils, phospholipis, and steriods?
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41.  Which of the following statements about the cytoskeleton is true?
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42.  Which of the following contains hydrolytic enzymes?
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43.  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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44.  An example of a hydrogen bond is the bond between
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45.  Which property of the carbon atom gives it compatibility with a greater number of different elements than any other type of atom?
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46.  Muscle cells in oxygen deprivation convert pyruvate to ________ and in this step gain
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47.  Which of the following is a correct definition of a kilocalorie?
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48.  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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49.  Three or four of the following statements are true and correct. Which one, if any,is false?
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50.  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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51.  What is the chemical mechanism by which cells make polymers from monomers?
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52.  Carbon dioxide (CO2) is released during which of the following stages of cellular respiration?
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53.  A new flower species has a unique photosynthetic pigment. The leaves of this plant appear to be reddish yellow. What wavelengths of visible light are not being absorbed by this pigment?
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54.  In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from
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55.  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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56.  Which of the following would there be the greatest need for osmoregulation?
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57.  If the pH of a solution is increased from pH 5 to pH 7, it means that the
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58.  All of the following statements are correct regarding the Calvin cycle of photosynthesis except:
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59.  Which of the following is (are) true of natural selection>
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60.  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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61.  Because bundle-sheath cells are relatively protected from atmospheric oxygen, the level of __________ is held to a minimum in C4 plants.
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62.  Correct statements regarding ATP includeI. ATP serves as a main energy shuttle inside cells.II. ATP drives endergonic reaction in the cell by the enzymatic transfer of the phosphate group to specific reactants.III. The regeneration of ATP from ADP and phosphate is an endergonic reaction
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63.  Which of these is a correct representation of the hierarchy of biological organization from least to most complex?
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64.  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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65.  Evolution is biology's core theme that ties together all the other themes. This is because evolution
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66.  Of the following functions, which is most important for the glycoproteins and glycolipids of animal cell membranes?
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67.  Altering which of the following levels of structural organization could change the function of a protein?
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68.  The electron transport chain energy is used to pump H+ ions into which location?
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69.  What maintains the secondary structure of a protein?
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70.  Hydrophobic substances such as vegetable oil are
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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.  Which of the following is not considered to be a wear molecular interaction?
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73.  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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74.  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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75.  Who first names and described cells in 1665
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76.  Phosphofructokinase is an important control enzyme. All of the following statements concerning this enzyme are true except:
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77.  All of the following statements are part of Charles Darwin's concept of natural selection except:
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78.  Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through
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79.  Which of the following statements is (are) true about the phosphate ion?
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80.  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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81.  All of the following statements are representative of the second law of thermodynamics except
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