Sample exam 3 - Fonnlk lflmmeflninfl BIO 31 1D Spring...

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Unformatted text preview: Fonnlk lflmmeflninfl: BIO 31 1D Spring 2007 Dr. Zhao Name(sign): EXAM 3 SELECT THE §INGLE BEST ANSWER FOR EACH OF THE FOLLOWING: (2.5 points for each question) 1. Which of the following is an effect of oxytocin? a. Stimulation of uterine contractions at birth b. Increased reabsorption of water in the kidney c. Stimulation of thyroid hormone release d. Increased productivity of the hypothalamus e. Increased rate of ovulation in the ovary 2. The symplast: a. greatly increases the surface area of the root. b. is a waterproof band surrounding the endodermis. c. allows nutrient minerals to move against their concentration gradient. d. secretes suberin, which waterproofs the cells. e. None of the above - 3. If you transplanted a plant native to the Mediterranean regions of Europe to North America, in which of the following biomes would it likely grow the best (i.e., outside of cultivation)? a. Desert b. Temperate deciduous forest c. Grassland d. Chaparral e. Savannah 4. A cow's herbivorous diet indicates that it is a(n) a. primary consumer. b. secondary consumer. c. decomposer. d. autotroph. e. producer. 5. A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, the following characteristics are noted: flagellated sperm, vascular tissues, separate gametophyte and sporophyte phases, and no seeds. This plant is probably most closely related to a. ferns. b. green algae. c. flowering plants. d. conifers. e. mosses. 6. For most terrestrial ecosystems, pyramids of numbers, biomass, and energy are essentially the same-they have a broad base and a narrow top. The primary reason for this pattern is that a. secondary consumers and top carnivores require less energy than producers. b. at each step, energy is lost from the system as a result of keeping the organisms alive. c. as matter passes through ecosystems, some of it is lost to the environment. d. biomagnification of toxic materials limits the secondary consumers and top carnivores. e. top carnivores and secondary consumers have a more general diet than primary producers. 7. You find a green “leafy" bryophyte growing on your neighbor's front lawn. It is a(an) a. alga. b. lichen. c. moss. d. fern. e. both c and d. 8. In angiosperms, double fertilization results in the development of a. two embryos. b. two embryos, but only one survives. c. the embryo and the endosperm. ' d. the gametophyte and the endosperm. e. the embryo and the gametophyte. 9. In angiosperms, pollen is transferred from the to the a. anther: style b. filament: ovary c. anther: stigma d. filament; ovary e. anther; ovule 10. Which of the following is not true about monocot and eudicot plants? a. Only monocots have a single embryonic cotyledon. b. Only eudicots have two cotyledons. c. Only monocots have triploid endosperm. d. Monocots include species of grasses and palm trees. e. Eudicots include species of trees and shrubs. 11. In each vascular bundle (eudicot plants), the tissue nearest the center of the stem is a. pith. b. endodermis. c. phloem. d. vascular cambium. e. xylem. \ 12. A lack of insulin cause diabetes mellitus because insulin is required for a. excretion of glucose. b. glucose breakdown. c. glucose uptake by cells. d. converting glucose to glycogen. e. synthesizing glucose. 13. Nonvascular plants have never evolved to the size of vascular plants, most likely because they lack a. a photosynthetic mechanism. b. an efficient mode of respiration. c. an efficient system for conducting water and minerals. d. nutrient and water absorption. 14. Unlike primary growth, secondary growth a. involves growth in plant diameter. b. involves growth in plant height. c. is produced by meristems. d. involves growth by cell elongation. e. occurs in all eudicots. 15. Annual rings are seen in temperate—zone trees because a. ground cell size varies with season.‘ b. phloem cell size varies with season. c. cork is deposited in rings in the stem. d. xylem cell size varies with season. e. a, b, and d. 16. The Casparian strip is a. a layer of endodermal cells. r b. a layer of epidermal cells. ' c. the apoplast. d. the symplast. e. the waxy layer between endodermal cells. 17. Which of the following choices does not correctly pair a biome with some of its characteristics? a. Tundra: very cold winters; only the upper layer of the soil thaws during summer b. Temperate deciduous forest: cold winters, moderate to high rainfall, dominated by dicot vegetation (maple and oak trees) c. Chaparral: cool, rainy winters; warm, dry summers d. Temperate grassland: annual rainfall is 30—60 inches, dominated by grasses e. Savanna: dominated by tall grasses, Relatively fast succession 18. In order to transport K+ ions into their cells, plants a. pump H+ out. b. use the sodium-potassium pump. c. pump K+ in. d. pump water in. e. Both b and c 19. The fruit generally develops from which part of the flower? a. Petals b. Sepals c. Ovary d. Stamens e. Ovule 20. 0f the following factors that regulate population size, the most density—independent factor is a. food supply. b. predators. c. disease. d. availability of nesting sites. e. sudden temperature changes. 21. The number of individuals in a population is least affected by the rate of a. births. b. deaths. c. mating. d. immigration. e. emigration. 22. In the handout, there is an example says Durian fruit is eaten by tiger. This interaction is an example of a. commensalism. b. predation. c. mutualism. d. parasitism. e. competition. 23. Which of the following concerning exponential growth is true? ' a. No population can grow exponentially for long. b. Exponential growth slows down as the population move to cold region. c. Bacterial colonies have been observed to maintain exponential growth for over a month. d. Exponential growth is always observed in large, slow-growing species such as elephant. ‘ e. Exponential growth includes a component of environmental resistance. 24. Certain woodpecker-like African birds have become specialized for removing and eating ticks and parasitic insects from the bodies of large herbivores. The relationship between the birds and the ticks is an example of a. mutualism. b. parasitism. c. commensalism. d. predation. e. competition. 25. 26. 27. 28. 29. 30. In order for a cell to be responsive to a lipid-soluble hormone, it must have a. a specific cell surface receptor. b. a specific receptor in the cytoplaSm or nucleus. c. a specific DNA sequence to which the hormone binds. d. an enzyme that binds the hormone. e. all of the above An ecological community is a. all the species of organisms that live and interact with one another in an area. b. all the species that live and interact in an area together with the abiotic environment. c. all the species in an area that belong to a particular trophic level. d. all the species that are members of a local food web. e. all of the above A traveler starting out near Washington, 0.0., on the East Coast of the United States and traveling toward the North Pole would encounter which of the following biomes, in which order? a. Temperate deciduous forest, cold conifer forest, tundra b. Chaparral, temperate deciduous forest, cold conifer forest c. Savanna, cold conifer forest, Chaparral d. Temperate grassland, cold conifer forest, tundra e. cold conifer forest, tundra, Chaparral Select the biome that is dominated by coniferous, evergreen trees with short growing seasons. a. Tundra b. Taiga c. Temperate deciduous forest d. Temperate grassland e. Cold desert which of the following is likely to cause an increase in human population size? a. advancement in agriculture "b. better weather predictions c. reducing the number of highway deaths d. improvement in medicine e. all of the above Angiosperms are the most successful terrestrial plants. This success is due to all of the following EXCEPT a. animal pollination. b. fruits enclosing seeds. c. sperm cells with flagella. d. reduced gametophytes. e. xylem with vessels. 31. All plants produce. by mitosis and by meiosis. 32. 33. 34. a. spores; gametes b. gametes: gametes c. gametes; spores .d. spores: spores e. spores: gametes and spores which of the following is TRUE concerning the sporophyte and gametophyte generations in flowering plants? a. All of the below are true. b. The sporophyte generation is dominant. c. The gametophyte generation is relatively few cells in the flower. d. The sporophyte generation is what we see when observing a plant. e. Unlike ferns, the gametophyte generation is not photosynthetic. Which of the following is an ongoing trend in the history of land plants? a. the elimination of sperm cells or sperm nuclei b. a decrease in the size of the leaf c. the replacement of roots by rhizomes d. the reduction of the gametophyte phase of the life cycle e. avoiding being eaten by dinosaurs Hormones can be secreted by v a. endocrine glands, such as the thyroid gland. b. cells in some organs. c. cells in the nervous system. d. Both a and c e. a, b, and c For short answer questions,'give concise, intelligible answers; complete sentences are not necessary. (4ptn) Answer following questions using the terms below 1. are water-absorbing structures of the simplest plant gamctophytes such as mosses. 2. The generation extends from the zygote through the adult, multieellular, diploid plant. 3. Two species of Paramecium are placed together in a test tube and one Species drives the other to extinction. This phenomenon is an example of 4. The male gametophyte in seed plants is the ; the mature female gametophyte is an embryo sac with . haploid nuclei. 5. When a tree is cut down, the cut surface of the stump ofien shows due to variations in the size of the vessels. 6. 1n the epidermis of a leaf are pores called whose opening is controlled by the action of a pair of J surrounding the pore. (Iptl) Matching: A. Bryophytes 1. dominant sporophyte, small gsmetophyte, swimming sperm B. Pterophytes 2. nonmotile sperm, both wind and insect pollinated C. Gymnosperms 3. dominant gametophyte, motile sperm D. Angiosperms 4. needlelike leaves, "naked" seeds, nonmotile sperm (0.5 points for each; (7 pta)Labeling ...
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