Biology 101-09 Practice Questions

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Purdue University Calumet Biology 101-09 Practice Final Exam Questions

  
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1.  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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2.  In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from
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3.  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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4.  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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5.  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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6.  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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7.  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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8.  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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9.  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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10.  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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11.  Carbon dioxide (CO2) is released during which of the following stages of cellular respiration?
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12.  Which of the following statements regarding events in the functioning of photosystem II is false?
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13.  CAM plants can keep stomates closed in daytime, thus reducing loss of water. They can do this because they
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14.  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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15.  The electron transport chain energy is used to pump H+ ions into which location?
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16.  Chemical equilibrium is relatively rare in living cells. Which of the following could be an example of a reaction at chemical equilibrium in a cell?
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17.  All of the following statements are true except:
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18.  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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19.  All of the following statements are representative of the second law of thermodynamics except
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20.  All of the following statements are correct regarding the Calvin cycle of photosynthesis except:
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21.  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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22.  During aerobic respiration, electrons travel downhill in which sequence?
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23.  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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24.  Muscle cells in oxygen deprivation convert pyruvate to ________ and in this step gain
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25.  Which of the following is true regarding catabolic pathways?
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26.  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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27.  Phosphofructokinase is an important control enzyme. All of the following statements concerning this enzyme are true except:
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28.  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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29.  Which of the following is not considered to be a wear molecular interaction?
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30.  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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31.  What is the difference between covalent bonds and ionic bonds?
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32.  If atom 6x (atomic number 6) were allowed to react with hydrogen, the molecule formed would be
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33.  All of the following statements are part of Charles Darwin's concept of natural selection except:
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34.  The atomic number of carbon is 6. 14C is heavier than 12C because the atomic nucleus of 14C contains
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35.  The ionic bond of sodium chloride is formed when
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36.  Evolution is biology's core theme that ties together all the other themes. This is because evolution
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37.  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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38.  Which of these is a correct representation of the hierarchy of biological organization from least to most complex?
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39.  Who first names and described cells in 1665
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40.  Van der Waals interactions result when?
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41.  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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42.  The dynamics of any ecosystem include the following major processes:
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43.  Why is it important that an experiment include a control group?
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44.  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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45.  Which of the following properties or processes do we associate with living things?
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46.  Three or four of the following statements are true and correct. Which one, if any,is false?
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47.  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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48.  Which of the following statements in completely correct?
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49.  Humans can digest starch but not cellulose because
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50.  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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51.  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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52.  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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53.  What maintains the secondary structure of a protein?
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54.  If the pH of a solution is increased from pH 5 to pH 7, it means that the
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55.  Polysaccharides, nucleic acids, and proteins are similar in that they
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56.  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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57.  An example of a hydrogen bond is the bond between
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58.  The hydrogenation of vegetable oil would result in which of the following?
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59.  How many structural isomers are possible for a substance having the molecular formula C5H12?
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60.  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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61.  Which of the following statements is (are) true about the phosphate ion?
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62.  Which of the following is a correct definition of a kilocalorie?
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63.  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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64.  Hydrophobic substances such as vegetable oil are
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65.  Research indicates that acid precipitation can damage living organisms by
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66.  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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67.  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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68.  The difference between the sugar in DNA and the sugar in RNA is that the sugar in DNA
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69.  Altering which of the following levels of structural organization could change the function of a protein?
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70.  Why does ice float in liquid water?
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71.  Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?
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72.  Which of the following is possible due to the high surface tension of water?
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73.  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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74.  Which of the following would there be the greatest need for osmoregulation?
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75.  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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76.  The movement of potassium into an animal cell requires
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77.  Which of the following is a major cause of the size limits for certain types of cells?
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78.  Of the following functions, which is most important for the glycoproteins and glycolipids of animal cell membranes?
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79.  An organism with a cell wall would have the most difficulty doing which process?
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80.  Which of the following contains hydrolytic enzymes?
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81.  Which of the following statements about the cytoskeleton is true?
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