Midterm style 2013 RULES • Two teams, two captains (I pick) • Teams must remain seated unless it is their question • If it is your teams question, have members of your team stand up. The more that stand, the more points you get! • The captain of the other team will pick a student standing. • If the student gets it correct, that team gets points for every student standing • If the student gets it wrong, the opposing team gets the points! Question 1 Which of the following would you MOST likely study in biology? A. Why do Texas horned lizards shoot blood out of their eyes B. How pipefish hide in seaweed C. What makes flowers bloom D. All of the above Question 2 Bacteria are…. A. Producer B. Primary Consumers C. Secondary Consumers D. Decomposers Question 3 What specific macromolecule contains genetic information? A. DNA B. Carbohydrate C. Lipid D. Protein Question 4 What type of data does not deal with numbers? A. Scientific B. Ethical C. Quantitative D. Qualitative Question 5 A tree is a…. A. Producer B. Primary Consumers C. Secondary Consumers D. Decomposers Question 6 Amino acids make up what main type of macromolecule? A. Lipid B. Protein C. Carbohydrate D. DNA Question 7 What best describes the purpose of science? A. To debate the meaning of life B. To propose solutions to political issues C. To explain the nature of things D. DNA Question 8 Climate is determined by which of the following: A. Light, temperature, precipitation B. water, rain, snow C. light, dark, twilight D. precipitation, evaporation, rain Question 9 What stage is a climax community in succession? A. Starting B. Final C. Middle D. Poorest Question 10 Which is an example of an observation? A. You record the air temperature every day B. You propose a cold front is coming in C. You hypothesize that the temperature will increase D. You conclude the season is changing Question 11 In the water cycle, water turns to what when it evaporates? A. Liquid B. Solid C. Gas D. All of the above Question 12 Which level of a food chain has the most organisms in it? A. Producer B. Primary Consumer C. Secondary Consumer D. Top level Question 13 Which of the following correctly sequences the steps of the scientific method? A. observe, question, make a testable explanation, experiment, collect and analyze data, state findings B. question, observe, explain, design and conduct experiment, collect and analyze data, report findings C. form a hypothesis, observe, investigate a testable question, collect and analyze data, state results D. design and conduct an investigation based on a testable question, form a hypothesis, collect data, state findings Question 14 Cougars often eat weak or sick animals. This describes its what? A. habitat B. niche C. community D. None of these Question 15 In a food pyramid, where are the most organisms located? A. Top B. Bottom C. Middle D. Can not be determined Question 16 Which level of a food chain has the most food energy available? A. Producers B. Primary consumers C. Secondary consumers D. Decomposers Question 17 Which of the following is NOT a limiting factor? A. Nutrients B. Water C. Space D. Emigration Question 18 Which of the following is the ultimate source of energy for the pyramid? A. Grass B. Heat C. Water D. Sun Question 19 What is “soil type” to an earthworm? A. Abiotic factor B. biome C. Biotic factor D. Carbon source Question 20 What is the distinction between a zone of tolerance and limiting factors? A. Limiting factors are biotic or abiotic factors that limit the growth of a species, while the range of tolerance defines the set of conditions in which an organism can survive. B. The range of tolerance defines biotic or abiotic factors that limit the growth of a species, while limiting factors define the set of conditions in which an organism can survive. C. Limiting factors and zones of tolerance are two terms for the same concepts about species survival under various environmental conditions. Question 21 Which characteristic is typical of a k-strategist? A. Generally small B. Short life span C. Produce many offspring D. Lengthy parental care Question 22 The Kimmarie Orchid became extinct in the wild due to ____. A. Habitat loss B. Exotics C. Habitat degeneration D. Over collection Question 23 Which of the following practices can help conserve an area’s biodiversity? A. Biological magnification B. Sustainable usage C. Habitat fragmentation D. Species introduction Question 24 ____ represents a formula for a chemical compound. A. H20 B. P C. C D. H Question 25 The total number of atoms in this molecule of sucrose, C12H22O11, is ____. A. 11 B. 12 C. 22 D. 45 E. 56 Question 26 Which particle in the nucleus of an atom has a neutral charge? A. Proton B. Neutron C. Electron D. Nucleus Question 27 When added to water, how does an acid affect the pH and H+ concentration? A. pH decreases, H increases B. pH and H increase C. pH and H decrease D. pH increases, H decreases Question 28 A single carbon atom can form a maximum of how many single covalent bonds? A. B. C. D. 2 4 6 8 Question 29 Which of the following shows the correct sequence of organization for living things? A. cell-tissue-organ-organ system B. cell-organ-tissue-organ system C. organ-tissue-cell-organ system D. cell-organ system-organ-tissue Question 30 A baby gaining ten pounds is an example of ____. A. Reproduction B. Development C. Growth D. Maintaining homeostasis Question 31 What type of succession is most likely to happen in a burned forest? A. Primary B. Secondary C. Tertiary D. Climax Question 32 On ten acres of native forest there are eight white-tailed deer, seven coyotes, 45 armadillos, and 231 loblolly pine trees. Which population has the highest density? A. deer B. coyotes C. armadillos D. Pine trees Question 33 How does an enzyme influence a biological reaction? A. It decreases the activation energy necessary to initiate the chemical change. B. It increases the net energy difference between reactants and products. C. It decreases the kinetic energy of reactants, enabling them to undergo chemical change more easily. D. It increases the kinetic energy of reactants, thereby increasing their tendency to collide. Question 34 Which statement is a fundamental principle of the cell theory? A. The genetic material in cells is DNA. B. Living organisms are composed of cells. C. All cells have a plasma membrane. D. Eukaryotic cells are larger than prokaryotic cells. Question 35 Which organelle converts sugars into energy? A. lysosome B. Nucleus C. Mitochondrion D. ribosome Question 36 Which statement is true about bacterial cells? A. The cells are very large. B. They have membrane bound organelles. C. They are eukaryotes. D. The cells have no nucleus. Question 37 The prefix kilo- means ____. A. 10 B. 100 C. 1000 D. 1/1000 Question 38 The SI unit of length is the ____. A. liter B. gram C. meter D. newton Question 39 Osmosis is the movement of ____ into and out of cells. A. oxygen B. water C. cytoplasm D. chemicals Question 40 Anything that has mass and occupies space is ____. A. Matter B. Atom C. Compound D. Energy Question 41 Young adult male chimpanzees look for mates outside their own population. The males then take the females back to their group. Which of the following occurs in females’ original population? A. Immigration B. Mortality C. Natality D. Emigration Question 42 A population might be increasing because the ____. A. birth rate is decreasing B. death rate is decreasing C. birth rate is increasing D. both b and c Question 43 Which is not a topic of biology? A. the distribution of sand on an ocean floor B. the relationship between fungi and trees C. the speed at which a hummingbird flies D. the chemicals at work in the stomach Question 44 Which is not something a scientist would study? A. botany B. biology C. astrology D. anatomy Question 45 What is the basis of the metric measurement system? A. based on European measurement standards. B. It is the only scientific measurement system. C. It is based on the wavelength of krypton-86 radiation. D. based on divisions that are powers of ten. Question 46 Which best describes the difference between an observation and an inference? A. You can record an observation; an inference is an idea. B. An observation is a conclusion; an inference is a hypothesis. C. An observation is based on evidence, an inference is not. D. You make an inference before you make observations. Question 47 All predators are ____. A. producers B. primary consumers C. secondary consumers D. food webs. Question 48 The body is made up of many ____ working together. A. tissues B. organs C. organ systems D. organism Question 49 At the end of an experiment, a scientist forms a(n) ____. A. conclusion B. observation C. problem D. hypothesis Question 50 In what organisms does alcoholic fermentation take place? A. viruses B. yeast and some bacteria C. fruit flies D. plants Question 51 What is the role of oxygen in cellular respiration? A. It provides electrons for the electron transport chain. B. It combines with carbon monoxide to form carbon dioxide. C. It is needed for the production of light and heat. D. It is the final electron acceptor for the electron transport chain. Question 52 Where does the oxygen used in cellular respiration end up? A. NADH B. water. C. Glucose D. ATP Question 53 When light strikes chlorophyll molecules, they lose electrons, which are ultimately replaced by which of the following? A. splitting water into 2H+ and O2– B. oxidizing glucose C. breaking down ATP D. fixing carbon Question 54 What happens when an aerobic organism is placed in an anaerobic environment? A. Glycolysis stops, stopping the citric acid cycle. B. The electron transport chain stops, stopping the citric acid cycle. C. The citric acid cycle stops, stopping the electron transport chain. D. The electron transport chain stops, stopping the citric acid cycle. Question 55 Predict the photosynthetic pathway that might be used by a saguaro cactus. A. CAM B. C4 pathway C. C3 pathway D. nitrogen fixation Question 56 How long are food chains? A. 4 steps B. 3 steps C. Varies with day length D. Varies on the ecosystem Question 57 Which process describes nitrogen fixation? A. bacteria take nitrogen from the air and convert it to a form usable by plants B. animals eat plants containing nitrogen and return it to the soil through urination C. organisms die and are decomposed into ammonia in the soil D. plants take nitrogen from the air and store it in their roots Question 58 What nutrient makes plants grow faster? A. nitrogen B. sodium C. calcium D. oxygen Question 59 Which of these species might be classified as a pioneer species? A. pines B. aspen C. choke cherry D. lichen Question 60 Density, distribution, and growth rate are characteristics used to classify which one of the following? A. biomes B. Limiting factors C. Populations D. Aging structure Question 61 Which of the following does not affect the spatial distribution of a population? A. the distribution of food and other resources B. the carrying capacity of a population C. abiotic conditions like rainfall and sunlight D. the existence of predators or parasites Question 62 A population’s emigration in one month totaled three individuals. During the same period, immigration was 17 individuals. Natality was 12, and mortality was 26 due to a parasite infection. What was the net effect on the population size? A. -14 B. -12 C. 0 D. 26 Question 63 How does the logistic model of population growth differ from the exponential model? A. The logistic model considers the environment’s carrying capacity. B. The exponential model shows a restricted growth rate. C. The graph of the logistic model has a longer lag phase. D. The graph of the exponential model is S shaped. Question 64 A fruit fly that has a short life span and produces many offspring can be classified into which reproductive strategy? A. k-strategist B. r-strategist C. a carrying-capacity strategist D. a logistic strategist Question 65 If you were to develop a measure of the approach to human carrying capacity, what would be the most complete description A. population growth rate plus resource use per person B. population growth rate times resource use per person C. population distribution times resource use per person D. population distribution plus ressources avalable per Person Question 66 Afghanistan has a growth rate of 4.8 percent per year and Niger has a growth rate of 2.6 percent per year. For every thousand people, how many more individuals will be added to the population in Afghanistan than in Niger in one year? A. 2.2 B. 22 C. 26 D. 48 Question 67 One isotope of carbon differs from another in which way? A. Atomic number B. Number of neutrons C. Number of electrons D. Number of protons Question 68 A molecule of water (H2O) has which bonds? A. 1 covalent bond B. 2 covalent bonds C. 1 ionic bond D. 2 ionic bonds Question 69 Which is an example of a chemical reaction? A. Iron rusting B. Ice melting C. Water evaporating D. Sugar dissolving in water Question 70 Which is the best description of activation energy? A. Heat stored within the reactant molecules. B. Heat released as the reaction proceeds C. Heat added to initiate a reaction. D. Heat stored within the product molecules. Question 71 Capillary action is the result of adhesion. Which aspect of water is responsible for this? A. hydrogen bonds between water and another substance B. polar covalent bonds that join molecules of water to other substances C. nonpolar covalent bonds that enable water to dissolve other substances D. ionic bonds that enable electrons to flow through water and into another substance Question 72 Which element is found in proteins but not carbohydrates or lipids? A. C B. H C. N D. O Question 73 In humans and other multicellular organisms, which substance plays a central role as an energy source? A. Fat B. Carbohydrate C. Protein D. Water Question 74 What did scientists observe using the earliest microscopes. A. Tiny organisms B. Molecules C. Cell parts D. Atoms Question 75 Which is present only in eukaryotic cells? A. DNA B. Nucleus C. Chromosomes D. Cell membrane Question 76 Cholesterol is repelled by water and can be found between the layers of the phospholipids in the plasma membrane. What can be concluded from this information? A. Cholesterol is nonpolar. B. Cholesterol is polar. C. A high cholesterol diet should be avoided. D. Cholesterol is repelled by the polar tails. Question 77 Chloroplasts are organelles that convert light energy to sugars. These organelles are found only in plants. Which organelles are found only in animals? A. lysosomes B. golgi apparatus C. mitochondria D. ribosomes Question 78 What is a major difference between facilitated diffusion and active transport? A. Active transport uses proteins in the process. B. Active transport moves substances against the concentration gradient. C. Facilitated diffusion moves molecules through the plasma membrane. D. Facilitated diffusion requires large amounts of energy. Question 79 What types of materials are expelled from cells during exocytosis? A. water and glycerol B. small molecules such as carbon dioxide C. positive and negative ions D. large molecules such as hormones Question 80 During photosynthesis light energy is converted to the energy in chemical bonds. What also happens according to the predictions of the second law of thermodynamics? A. heat is released in the process B. the light and chemical energy are equal C. matter is lost in the process D. chemical energy is converted to light energy Question 81 An organism that uses hydrogen sulfide as a source of energy is categorized as which of the following? A. photoautotroph B. heteroautotroph C. chemoautotroph D. thermoautotroph Question 82 Which of the following metabolic pathways is anabolic? A. photosynthesis B. respiration C. alcohol fermentation D. breakdown of actin in muscles Question 83 What results from the removal of a phosphate group from ATP? A. the release of energy B. the production of mechanical energy C. the creation of energy D. the absorption of energy by chlorophyll Question 84 Infer why chloroplasts are found mostly in the leaves of plants. A. The waxy coating on the surface of leaves helps prevent evaporation. B. Chlorophyll interferes with the xylem and phloem in the stems and trunks of plants. C. The large surface area of leaves allows for contact with oxygen. D. The large surface area of leaves allows for maximum light absorption. Question 85 If yellow, red, and orange pigments exist in the leaves of trees, why are leaves green except for in the autumn? A. Chlorophyll is the most abundant of all the pigments. B. Chlorophyll molecules are the largest of the all pigment molecules. C. Chlorophyll reproduces faster than the other pigments. D. Green is the color of the spectrum most easily seen by humans.