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Quarterly Review Directions: These questions cover the first three units we studied. You do NOT HAVE to answer all of these questions. Answer a few each day and keep track of your answers; discuss your concerns on the wiki or in class. You can stay after too, either to use my computer or to review. The answer key will be posted in a few days so that you can work on some questions on your own at first. Keep in mind the quarterly may not be quite this hard, or long. Missing numbers means I deleted the question. Enzymes are a type of protein that aid in which of the following processes? 1. A.transport across the cell membrane B.cellular signaling and regulation C.the breakdown of food molecules D.all of these 2. Over the course of Earth's history, many species have evolved. However, many species have also become extinct. How is evolution related to extinction? A.Extinction is a driving force behind evolution because it creates voids for new species to fill. B.Evolution ensures that species are able to adapt and avoid extinction. C.Evolution causes some species to become extinct in order that other species may thrive. D.Evolution is not related to the concept of extinction. Which of the following is most often used to guide scientific inquiries and evaluate proposed explanations made by other scientists? A.historical and current scientific knowledge B.popular cultural trends and beliefs C.the opinion of leading scientists D.political and societal influences 3. 5. Some organisms that appear to be very different from other organisms are in fact quite similar anatomically. Scientists believe whales evolved from land mammals for many reasons including a few internal functionless hind-limb bones found in whalesï¿_ bodies. What is the term for a functionless anatomical structure that is evidence of an organismï¿_s evolutionary past? A.trace structure B.vestigial structure C.absorbed structure D.homologous structure Diana would like to observe the movements of a paramecium. Which of the following tools would be best for Diana to use? 6. A.hand lens B.convex telescope C.scanning electron microscope D.light microscope 7. A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. Which of the macromolecule groups is this liquid MOST likely to be a member of? A.carbohydrates B.nucleic acids C.proteins D.lipids 8. A mutation exists in a gene that controls hair growth on the middle digit of human fingers. Some people have mid-digital hair, while others do not. The gene can be passed from one generation to the next. Which explanation best predicts what should happen to this trait over time? A.The incidence of mid-digital hair offers a selective advantage. B.The incidence of mid-digital hair advantage or disadvantage. C.The incidence of mid-digital hair selective disadvantage. D.The incidence of mid-digital hair advantage. will increase in the human population because it will not change because it offers no selective will decrease in the population because it has a will increase because it offers no selective Examine the graph below showing the leading causes of death in the United States. Which of the following conclusions can be drawn from the graph? 9. A.Americans do not live as long as citizens of other countries. B.The majority of Americans die from diseases related to lifestyle choices. C.The majority of deaths among juveniles are caused by accidents. D.Infectious diseases kill more Americans than any other causes combined. 10. Polymers of the carbohydrate monomer glucose are used as the major form of energy storage for many plants. What are these glucose polymers called? A.table sugar B.maltose C.starch D.glycogen Examine the evolutionary diagram below. What does the diagram imply about the peafowl and the chicken? A.They B.They C.They D.They descended from early mammals. share a recent common ancestor. did not evolve from older forms of life. are unrelated. 11. 12. Hayden has placed a cricket in a terrarium. He is interested in learning about cricket behavior. Which of the following is a question about cricket behavior that Hayden can answer through a scientific investigation? A.How will the cricket feel if the terrarium is left in a dark room for several days? B.Does a cricket prefer to live in the wild or in a terrarium? C.How will the cricket behave if another cricket is introduced into the terrarium? D.Do crickets make better pets than lizards? 13. Carbohydrates, such as glucose, are excellent sources of immediate energy for living organisms. More complex carbohydrates, such as glycogen and starch, can also be used for the long term storage of energy. However, carbohydrates play other vital roles, too. Which of the following describes another common use for carbohydrates? A.Keratin provides support in hair, nails, feathers, hooves, and some animal shells. B.Collagen is a major component in cartilage and tendons. C.Cellulose is used as a structural component in plant cell walls. D.Enzymes help speed up metabolic reactions. 16. All nucleic acids contain a functional group that is also found in the subset of lipids that make up biological membranes. What is this functional group? A.amino group B.phosphate group C.carboxyl group D.sulfhydryl group 17. Natural selection allows a species to change in response to its environment. What is the process by which a species becomes better suited to its environment called? A.natural selection B.speciation C.adaptation D.gradualism 18. Elizabeth is testing the effects of soil additives on fruit production at an apple orchard. Elizabeth would like to find out if the soil additives increase the mass of the apples. What tool will Elizabeth need in order to complete her research? A.balance B.beaker C.pH meter D.graduated cylinder Which of the following is a type of lipid? 19. A.saturated fat B.triglyceride C.cholesterol D.all of these 20. A population of deer gets exposed to a pesticide that produces mutations in one of the following types of cells. In which type of cell will a mutation be most likely to alter the make-up of the population? A.sperm cell B.brain cell C.muscle cell D.blood cell 21. A student hypothesizes that placing blood cells in high concentrations of salt water will cause them to grow and eventually lyse. He performed an experiment in which he submerged blood cells in various concentrations of salt water and recorded his results in the table below. (All conditions were kept the same except for the salinity of the water.) Salinity Cell Diameter (in micrometers) Lysis? 0.0% N/A Y 0.3% 8.0 Î_m N 0.6% 7.4 Î_m N 0.9% 6.6 Î_m N 1.2% 6.0 Î_m N Does the student's data support his hypothesis? A.No; cell lysis never occurs. B.No; the cells shrink with increasing salinity. C.Yes; the cells grow with increasing salinity. D.There is not enough information to tell. 22. Monosaccharides are generally defined by which of the following carbon to hydrogen to oxygen ratios? A.(CH2O)n B.(C2HO)n C.(CHO)n D.(CHO2)n 23. W. X. Y. Z. The figures above show four vertical cuts through different canyons. The top layer is the youngest layer, and the bottom layer is the oldest. In the layers are fossils of shellfish. Which cut would be possible evidence that a circular shellfish evolved from a hexagonal shellfish? A.Cut B.Cut C.Cut D.Cut W X Y Z Greg is measuring a volume of water with a graduated cylinder. How much water is now in the cylinder? A.36 B.35 C.37 D.34 24. mL mL mL mL 25. Humans and other animals need a variety of materials in order to form the molecular building blocks of life. What is the primary source of these materials? A.DNA B.food C.vaccines D.the Sun 26. There is a large amount of biodiversity throughout the world. According to the theory of natural selection, which of the following factors is primarily responsible for biodiversity? A.punctuated equilibrium B.genetic drift C.evolution D.environmental diversity 27. Juanita runs a restaurant. She wants to make sure that the food served by her restaurant is as clean as possible. Juanita wants to find out the best way to kill or wash off any microorganisms on the fresh produce used by her cooks. Which of the following is a testable hypothesis that Juanita could make in order to conduct an experiment concerning her problem? A.What does the local health code say concerning the treatment of produce? B.Produce must be washed under running water for 10 minutes in order to remove all microorganisms on the produce. C.Fresh produce will taste better if it is irradiated in order to kill all of the microorganisms on the produce. D.What is the best way to kill or wash off any microorganisms in the fresh produce used by the restaurant? 28. Lipids are organic macromolecules that serve a variety of purposes. What is the most important role of lipids? A.to B.to C.to D.to store energy oxygenate blood build muscles metabolize sugar 29. Imagine an earthquake creates a chasm that separates a population of squirrels. The two populations of squirrels evolve into two separate species. What is the name of the process by which isolated populations of the same species become new species? A.genetic variation B.reproductive isolation C.speciation D.natural selection 30. One cool October morning, the local mayor gave a speech in Central Park to an audience of local men and women. During his speech, he discussed various environmental issues such as water conservation and air pollution. He also promised to support any legislation that placed the health of the town's citizens as the highest priority. While listening to the mayor's speech, a resident of the town saw the following chart printed in the newspaper. Proposition number Month Issue Mayor's vote Proposition 379 March Create and authorize funding for a local environmental research group. N Proposition 422 June Require local industries to report the amount of particulate matter that they release into the air. N Proposition 486 August Require local residents and businesses to follow a water conservation plan in times of drought. N Proposition 513 September Permit the rezoning of local land for increased commercial and residential development. Y Which of the following statements is best supported by the above information? A.An increase in the number of local businesses will benefit the health of the residents. B.The mayor's actions do not support his words. C.There is no need to discuss environmental issues in this town. D.The mayor's actions support the promises made in his speech. Nucleic acids are one of the four major macromolecules. 31. The main function of nucleic acids is to A.carry genetic material that helps to create structures inside the cell. B.aid in development, the immune system, and blood clotting. C.act as enzymes, cell signals, and structural support for the cell. D.absorb energy from the Sun and transport it around the cell. 32. Scientific investigations indicate that the Earth is many billions of years old. Which of the following statements is true of the processes that shape the Earth? A.Many of the processes that changed the Earth in the past have become extinct. B.Many of the processes that changed the Earth in the past are the same processes that operate in the present. C.The processes that changed the Earth in the past do not resemble any of the processes that operate in the present. D.The processes that changed the Earth in the past have evolved into newer, better processes. Scientific investigations and explanations must be 33. A.All of these are correct answers. B.consistent with experimental and observational evidence about nature. C.clearly reported to enhance opportunities for further investigation. D.logical and respect the rules of evidence. 34. Proteins can perform many different functions in living cells. One major function, acting as a catalyst for chemical reactions, can also be performed by what other kind of organic molecule? A.RNA B.glycogen C.cholesterol D.phospholipids 35. All organisms that sexually reproduce exhibit behavior that encourages reproductive activities from the opposite sex. Why would this form of behavior most likely be naturally selected? A.Organisms that have behaviors that encourage reproduction would be more likely to reproduce. B.Organisms that have behaviors that encourage reproduction also have behaviors that encourage survival. C.Natural Selection cannot occur without reproduction. D.Organisms will not reproduce without the appropriate behaviors being exhibited by the opposite sex. 36. Scientists conduct investigations for a variety of reasons. Which of the following reasons best explains why a scientist would want to replicate Gregor Mendel's pea plant experiment? A.to B.to C.to D.to explain recently observed phenomena test the conclusions of prior investigations discover new aspects of the natural world test the predictions of current theories Carbohydrates are composed of which three elements? A.oxygen, sulfur, and phosphorus B.carbon, hydrogen, and oxygen C.carbon, nitrogen, and phosphorus D.oxygen, hydrogen, and nitrogen 37. 38. The figures above show the changes in a population of colored lizards at the beginning and after 100 generations. Which of the following is the most likely explanation for the results? A.Some change green ones. B.Some change blue ones. C.Some change green ones. D.Some change blue ones. in the environment selected for blue lizards, but against red and in the environment selected for green lizards, but against red and in the environment selected for red and blue lizards, but against in the environment selected for red lizards, but against green and Which of the following is an example of a scientific theory? 39. A.the speed of light B.evolution C.conservation of mass D.elements in the periodic table A triglyceride is a common type of lipid which contains 40. A.a water molecule and two fatty acids. B.three glucose molecules and two fatty acids. C.three glyceride molecules and a fatty acid. D.a glycerol molecule and three fatty acids. The figure above shows the progression of embryonic stages of four species of invertebrates. Which of the following species are most closely related by evolution? A.Species B and Species C B.Species A and Species B C..Species C and Species D D.Species A and Species D 41. 42. A school superintendent justified the spending of millions of taxpayer dollars on computers for students by saying that an increased access to computers increased student test scores. A few days later, it was discovered that the school superintendant was a major stockholder in the computer manufacturing company. Which of the following statements is true of this scenario? I. The school superintendent may be biased. II. The school superintendent is an expert in student test scores. III. There was no scientific evidence presented regarding the student test scores. IV. The computer company should conduct a study on the student test scores. A.I, III, and IV only B.I and III only C.I and II only D.I, II, III, and IV 43. Cellular processes are carried out by many different types of molecules, mostly proteins. The function of each protein molecule depends on its shape which, in turn, is determined by the protein's specific sequence of . A.triglycerides B.amino acids C.nucleotides D.monosaccharides 44. Scientists know that organisms that are more closely related will have DNA sequences more similar to each other than organisms that are distantly related. Which two organisms below would most likely have the fewest similar nucleotide sequences in a given gene? A.alligator and earthworm B.orangutan and howler monkey C.scorpion and tarantula D.lion and horse When all the current evidence from many related scientific investigations are drawn together, a scientific theory may be produced. The acceptance of a scientific theory relies on the _______ of the scientific community. 45. A.academic credentials B.consensus C.ethics D.political parties 46. Though the polymers DNA and RNA function in information storage and transfer, there are also smaller nucleic acids, such as ATP and NADH, which are individual nucleotides or dinucleotides, respectively. What role do ATP and NADH play in living cells? A.They B.They C.They D.They store and transfer energy. provide structural support to cell membranes. also store and transfer information. are involved in cell-to-cell signaling. 48. Selma wants to find out at which temperature Streptococcus bacteria reproduce the fastest. Selma places the same size sample of the bacteria on 10 different Petri dishes filled with nutrient agar. She then places each dish in different incubators which are all set at different temperatures. After three hours, Selma removes the dishes from the incubators and observes the size of the bacterial colonies. What is the variable in Selma's experiment? A.the temperature of the incubator B.the size of the Petri dishes C.the size of the bacterial colonies D.the type of nutrient agar used What four elements are found in all amino acids? 49. A.carbon, hydrogen, oxygen, and nitrogen B.carbon, hydrogen, sulfur, phosphorus C.oxygen, hydrogen, nitrogen, potassium D.oxygen, hydrogen, sulfur, phosphorus 50. Which of the following processes would be most effective in changing the frequency of certain traits in a population over time? A.chemically-induced mutations B.spontaneous mutations C.natural selection D.genetic recombination