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Page 1Page 2Page 3Page 4Page 5Page 6-1-BIOS 100 - Fall, 2006pm Name:Exam III, 10 OCT, 2006 Michael Muller, Instructor TA:This exam consists of 54 questions over 6 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. Good Luck! Use the key below to answer questions 1-5. The cell represented below is a 2n=4 cell.A B C D E1. This is a picture of the cell in Metaphase I B2. This is a picture of a cell in Anaphase II E3. This is a picture of a cell in Metaphase II C4. This is a picture of a cell in Anaphase of Mitosis D5. Crossing over has already occurred in how many of the above pictures?A. 0 B. 1 C. 2 D. 3 E. 46. Which of the following statements (A-D) is FALSE? If statements A-D are true, then chooseE.A. At the start of mitosis, the chromosomes have already been replicatedB. The sister chromatids are joined at the centromereC. During mitosis, homologous chromosomes will separate during anaphaseD. The product of mitosis is two genetically identical daughter cellsE. All of the above statements are TRUE7. During which stage of the cell cycle is DNA unreplicated for the entire phase?A. G1 B. G2 C. S D. M E. A & B8. During which stage of meiosis do sister chromatids separate?A. Metaphase I B. Anaphase I C. Metaphase II D. Anaphase II9. The product of meiosis is ______A. two genetically identical cells B. two genetically unique cellsC. four genetically identical cells D. four genetically unique cellsE. None of the above-2-10. Which of the following statements (A-D) about MPF is FALSE? If statements A-D are true,then choose E.A. MPF is an aggregation of a cyclin and a CDKB. MPF levels are greatest during the M phase of MitosisC. MPF complexes are formed at the G1 checkpointD. MPF initiates a process which destroys cyclins, thus ending MitosisE. All of the above statements are TRUE11. Proto-oncogenes:A. Are genes which will be come cancerousB. Are cancerous genesC. Are genes which speed up the rate of cell divisionD. Are genes which slow down the rate of cell divisionE. None of the above12. Which of the following statements (A-D) about non-disjunctions is FALSE? If statementsA-D are true, then choose E.A. Non-disjunctions result when chromosomes do not separate properly during meiosisB. Non-disjunctions occur much more commonly in both older males and femalesC. Most fertilizations of human gametes with non-disjunctions are fatal - however, someare notD. Downs Syndrome is the result of a non-disjunctionE. All of the above statements about non-disjunctions are TRUE13. Cancer cells do not exhibit contact inhibition and have active telomerase enzymesA. True B. False14. A cell which will not divide in the foreseeable future will enter a state of cell-cycledormancy. This stage is known as:A. G0 B. G1 C. G2 D. Z E. M15. Dicots will possess all of the following characteristics except:A. Herbaceous habit B. Reticulate (net) veins C. Fibrous root systemD. Floral parts in 4's and 5's E. Secondary growth16. Which of the following is not true about secondary growth?A. Secondary growth results in an increase in girthB. Secondary growth is found in dicots, but not monocotsC. Xylem formed by a vascular cambium is known as secondary xylemD. Secondary growth can originate from an apical meristemE. Secondary growth is responsible for the production of wood in a tree17. The cells surrounding a root apical meristem which can become meristematic if the apicalmeristem dies are called:A. Secondary meristems B. The Quiescent Center C. The Apogeal CenterD. Axillary meristems E. None of the above-3-Use the key below to answer questions 18 - 21I. Parenchyma III. Sclerenchyma V. Sieve tube elementsII. Collenchyma IV. Vessels & Tracheids18. In the above list, how many cells are living at functional maturityA. 1 B. 2 C. 3 D. 4 E. 519. Which of the above cells are actively involved in transport?A. IV only B. V only C. IV, V D. I, IV, V E. III, IV, V20. Which cell types are involved in supporting the plant?A. III only B. II, III C. III, IV D. II, III, IV E. I, II, III, IV21. This cell type has companion cells associated with itA. I B. II C. III D. IV E. V22. When a vascular cambium cell divides forming a xylem element and another cambial cell,this is an example of:A. Additive growth B. Multiplicative growth C. Divisional growth23. The picture to the right is an example of A. Monocot RootB. Dicot RootC. Monocot stemD. Herbaceous dicot stemE. Woody dicot stem24. The structure labeled “#24" is:A. Vascular cambium B. Xylem tissue C. Phloem tissueD. Endodermis E. Pericycle25. The structure labeled “#25" is:A. Vascular cambium B. Xylem tissue C. Phloem tissueD. Endodermis E. Pericycle26. Branch roots originate at:A. the pericycle B. the endodermis C. the root apical meristemD. root axillary meristem E. None of the above27. Plants have very few cell and tissue types, but many, many organsA. True B. False-4-28. Xylem rays are:A. Rows of parenchyma cells in the xylem which help protect and maintain the xylemB. Rows of proto-xylem which will mature into fully functional xylemC. Extensions of the vascular cambiumD. Invagination of primary xylemE. None of the above29. What area has the lowest total water potential (Qw)?A. The soil around the roots B. The root tissueC. The stem tissue D. The leaf tissueE. The air30. Which solution has the lowest Qs (solute water potential)A. Pure water B. 0.25 M sucrose C. 0.5 M glucoseD. 0.5 M NaCl E. C & D31. Two solutions are under the water potentialconditions illustrated on the left. Which waywill water move?A. Solution A to BB. Solution B to AC. No net movement of water32. What is the function of the Casparian Strip?A. Protect the root from pathogens B. PhotosynthesisC. Formation of branch roots D. Regulate water entry into the xylemE. None of the above33. Which of the following adaptations would you not expect to find in plants growing in thedesert?A. Dark green leaves B. Thick cuticles C. SpinesD. Succulent leaves E. All of the above 34. During translocation, where is the solute water potential (Qs) the greatest?A. At the source B. At the sink C. In between the source and the sink35. Which of the following is true for translocation of the phloem?A. It is always


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UIC BIOS 100 - Exam III

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