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Biology 101-09 Practice Questions

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

  
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1.  All of the following statements are correct regarding the Calvin cycle of photosynthesis except:
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D.
2.  Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. How is lactose classified?
3.  The movement of potassium into an animal cell requires
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4.  All of the following statements are part of Charles Darwin's concept of natural selection except:
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5.  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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6.  Who proposed that the membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids?
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7.  Research indicates that acid precipitation can damage living organisms by
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8.  Which of the following statements is true about buffer solutions?
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9.  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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10.  Which of the following is (are) true of natural selection>
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11.  Why is it important that an experiment include a control group?
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12.  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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13.  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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14.  Of the following functions, which is most important for the glycoproteins and glycolipids of animal cell membranes?
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15.  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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16.  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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17.  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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18.  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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19.  What maintains the secondary structure of a protein?
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20.  The difference between the sugar in DNA and the sugar in RNA is that the sugar in DNA
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21.  If atom 6x (atomic number 6) were allowed to react with hydrogen, the molecule formed would be
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22.  What is the chemical mechanism by which cells make polymers from monomers?
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23.  Which of the following is a trace element that is essential to humans?
24.  Humans can digest starch but not cellulose because
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25.  Which of the following is a correct definition of a kilocalorie?
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26.  Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through
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27.  Which of the following statements about the cytoskeleton is true?
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28.  Which of the following properties or processes do we associate with living things?
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29.  The dynamics of any ecosystem include the following major processes:
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30.  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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31.  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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32.  Which of the following statements in completely correct?
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33.  What kinds of molecules pass through a cell membrane most easily?
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34.  CAM plants can keep stomates closed in daytime, thus reducing loss of water. They can do this because they
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35.  Which of the following is possible due to the high surface tension of water?
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36.  Three or four of the following statements are true and correct. Which one, if any,is false?
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37.  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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38.  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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39.  Which of the following would there be the greatest need for osmoregulation?
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40.  Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?
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41.  Evolution is biology's core theme that ties together all the other themes. This is because evolution
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42.  Which of the following is true regarding catabolic pathways?
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43.  The hydrogenation of vegetable oil would result in which of the following?
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44.  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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45.  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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46.  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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47.  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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48.  The electron transport chain energy is used to pump H+ ions into which location?
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49.  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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50.  If the pH of a solution is increased from pH 5 to pH 7, it means that the
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51.  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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52.  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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53.  All of the following statements about NAD+ are true except:
54.  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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55.  Hydrophobic substances such as vegetable oil are
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56.  Which of the following is not considered to be a wear molecular interaction?
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57.  Van der Waals interactions result when?
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58.  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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59.  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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60.  Which of the following contain the 9 + 2 arrangement of microtubules?
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61.  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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62.  Which type of organelle is primarily involved in the synthesis of oils, phospholipis, and steriods?
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63.  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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64.  Carbon dioxide (CO2) is released during which of the following stages of cellular respiration?
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65.  Which of the following is one of the ways that the membranes of winter wheat are able to remain fluid when it is extremely cold?
66.  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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67.  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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68.  All of the following statements are true except:
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69.  Pure, freshly-distilled water has a pH of 7. This means that
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70.  During aerobic respiration, electrons travel downhill in which sequence?
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71.  Which of the following contains hydrolytic enzymes?
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72.  The atomic number of carbon is 6. 14C is heavier than 12C because the atomic nucleus of 14C contains
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73.  Altering which of the following levels of structural organization could change the function of a protein?
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74.  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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75.  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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76.  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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B.
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E.
77.  Elecrons exist only at fixed levels of potential energy. However, if an atom absorbs sufficient energy, a possible result is that
78.  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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79.  When biologists wish to study the internal ultrastructure of cells, they most likely would use
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80.  An example of a hydrogen bond is the bond between
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81.  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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82.  Which of these is a correct representation of the hierarchy of biological organization from least to most complex?
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83.  Which of the following statements is (are) true about the phosphate ion?
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84.  Who first names and described cells in 1665
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85.  Phosphofructokinase is an important control enzyme. All of the following statements concerning this enzyme are true except:
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86.  Which of the following statements regarding events in the functioning of photosystem II is false?
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87.  In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from
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E.
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