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UIC BIOS 100 - Exam III

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-1-BIOS 100 - Summer 2006 Name:Exam III, 26 July, 2006Michael Muller, Instructor TA:This exam consists of 52 questions over 7 pages. Please check to see that all the pages are present beforeyou begin. Use a #2 pencil and bubble in all answers. Your score will be posted on the UIC Blackboardsite as soon as they are in. No kidding. Good Luck! 1. When does crossing over occur?A. During prophase of mitosis B. During prophase I of meiosisC. During prophase II of meiosis D. A & BE. B & C2. After meiosis, what types of cells will you have?A. Two genetically identical daughter cells B. Two genetically unique daughter cellsC. Four genetically identical daughter cells D. Four genetically unique daughter cellsE. None of the above3. During what stage of the cell cycle would you expect helicase activity to be the greatest?A. G0 B. G1 C. G2 D. S E. M4. What is a non-disjunction?A. When chromosomes fail to properly fuse during fertilizationB. When chromosomes fail to properly line up during metaphase of mitosisC. When chromosomes fail to properly line up during metaphase I of meiosisD. When chromosomes fail to properly separate during anaphase I or II of meiosisE. None of the above5. Which of the following statements (A-D) about cyclins and associated molecules is FALSE? Ifstatements A-D are true, then choose E.A. Cyclin levels are variable throughout the cell cycleB. Cyclin levels are highest at the end of G2 and beginning of the M stages of the cell cycleC. Cyclins and cylclin-dependent kinases (CDK’s) combine to form maturation MPFcomplexesD. MPF promotes mitosis, and initiates processes to destroy cyclinsE. All of the above statements are TRUE.6.Which of the following characteristics would you NOT expect to find in a monocot?A. Fibrous root system B. TepalsC. Secondary xylem D. FruitsE. Parallel venation in the leaves7. When a vascular cambium divides via an additive division, a vascular cambial cell and whatis produced?A. A xylem or phloem cell B. Another vascular cambium cellC. Always a xylem cell D. Always a phloem cellE. None of the above-2-Use the diagrams below to answer the following questions about a 4n=8 cell.A B C D E8. Which of the above cells is an example of a 4n=8 cell in metaphase II of meiosis? C9. Which of the above cells is an example of a 4n=8 cell in metaphase of mitosis? A10. The diagram to the left is an example of a:A. Monocot stemB. Monocot rootC. Herbaceous dicot stemD. Woody dicot stemE. Dicot root11. What is the function of the Casparian Strip?A. Protect the root from pathogen B. PhotosynthesisC. Formation of branch roots D. Site of xylem and phloem formationE. None of the above12. Which of the following cells is NOT meristematic?A. Apical meristem B. Axillary meristemC. Vascular cambium D. PericycleE. All of the above are meristematic13. Which of the following cell types is not properly matched with one its functions?A. Parenchyma - photosynthesis B. Collenchyma - supportC. Schlerenchyma - support D. Vessels - supportE. All of the above cells are properly matched with one of its functions.14. In the list below, how many cells are living at functional maturity:xylem parenchyma, collenchyma, fiber, vessel, sieve-tube element, companion cell,sclerid, tracheidA. Three B. Four C. Five D. Six E. Seven-3-Use the key to answer questions 15 - 18I.. Bryophytes (mosses) II. Pteridophytes (ferns)III. Gymnosperms (pines) IV. Angiosperms (flowering plants)15. This/these plants produce seedsA. IV only B. III & IV C. II, III, IV D. I, II, III, IV E. None of the above16. This/these plants have chlorophyll A & B and store starch:A. IV only B. III & IV C. II, III, IV D. I, II, III, IV E. None of the above17. This/these plants have vascular tissue:A. IV only B. III & IV C. II, III, IV D. I, II, III, IV E. None of the above18. This/these plants have fruits:A. IV only B. III & IV C. II, III, IV D. I, II, III, IV E. None of the above19. Which of the following statements (A-D) about seed plants is FALSE? If statements A-Dare true, then choose E.A. All seed plants have vascular tissueB. All seed plants have ovulesC. Viable seeds consist of a seed coat, and embryo, and food for the embryoD. Both gymnosperms and angiosperms exhibit double fertilizationE. All of the above statements about seed plants are TRUE20. Flowers pollinated by birds are typically:A. Red B. Yellow C. White D. Blue E. Green21. A fruit is a ripened:A. Ovule B. Ovary C. Pistil D. Pollen E. Anther22. In a pine tree, the female gametophyte is the:A. Egg sac B. Ovule C. Ovary D. Seed E. Pollen23. Which of the following statements (A-D) about capillaries is FALSE? If statements A-D aretrue, then choose E.A. Capillaries are the thinnest-walled vessels and have the lowest flow velocity of anytype of blood vesselB. During an inflammation, mast cells secrete chemicals which make the walls of thecapillaries more porousC. Precapillary sphincters regulate the amount of blood entering the capillary bedsD. When your body is overheating, blood flow to the capillaries increases to dissipate theexcess heatE. All of the above statements about capillaries are TRUE24. Which side of the heart is involved in pulmonary circulation?A. The left side B. The right side C. The atria D. The ventricles-4-25. In which type of blood vessels is the greatest loss in blood pressure seen?A. Arteries B. Arterioles C. Capillaries D. VenulesE. Veins26. During inhalation, the diaphragm _________. During exhalation, the diaphragm ________.A. Contracts; contracts B. Contracts; relaxesC. Relaxes, contracts D. Relaxes; relaxes27. In the respiratory system, gas exchange take place in capillary beds surrounding the ______?A. nasal passages B. branchiae C. alveoli D. diaphragm E. lungs228. How is the majority of the CO transported back to the lungs?3A. Directly dissolved into the plasma B. As HCO-C. Bound to the hemoglobin D. Bound to carbonic anhydraseE. None of the above229. Where is the partial pressure (concentration) of CO the greatest?A. In the air B. In the alveolar capillaries C. In the body capillariesD. In the interstitial fluid E. None of the above30. Which organ has the greatest internal surface areas?A. Mouth (buccal cavity) B. Stomach C. Small intestineD. Large Intestine E. Rectum31. Which of the following correctly traces blood flow from the heart, to the lungs,


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UIC BIOS 100 - Exam III

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