Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 1 of 20 Name: _________________________ School: __________________________ Biology 2201 Midterm Examination January 2012 Instructor: Mr. Cooze Instructions: Read ALL instructions before proceeding with the exam. Students are required to do ALL items. This examination consists of the following parts: Part 1 – 50 Multiple Choice (50 Marks) Part 2 – Constructed Response (25 Marks) Answers to the multiple choice questions are to be placed on the attached Multiple Choice Answer Sheet. All other items are to be answered on the exam paper in the space provided. Write your name and/or initials on all pages of this exam. Check to ensure that you have all of the pages required for this exam as indicated at the top of each page. Hand in ALL papers, in the appropriate page order, when you have completed the exam.
Transcript
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 1 of 20 Name: _________________________ School: __________________________
Biology 2201
Midterm Examination
January 2012
Instructor: Mr. Cooze
Instructions: Read ALL instructions before proceeding with the exam.
Students are required to do ALL items.
This examination consists of the following parts:
Part 1 – 50 Multiple Choice (50 Marks)
Part 2 – Constructed Response (25 Marks)
Answers to the multiple choice questions are to be placed on the attached Multiple Choice Answer Sheet.
All other items are to be answered on the exam paper in the space provided.
Write your name and/or initials on all pages of this exam.
Check to ensure that you have all of the pages required for this exam as indicated at the top of each page.
Hand in ALL papers, in the appropriate page order, when you have completed the exam.
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Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 2 of 20 Name: _________________________ School: __________________________
Biology 2201
Midterm Examination
Multiple Choice Answer Sheet
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Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 3 of 20 Name: _________________________ School: __________________________
Part 1 – Multiple Choice (50 Marks)
Instructions: Write the correct answer for each question on the Multiple Choice Answer Sheet provided.
1. The statement, “All living organisms are made up of one or more cells.” supports
which of the following ideas? A. abiogenesis B. biogenesis C. cell theory D. spontaneous generation
2. Which scientist performed the first “real” experiment in support of biogenesis by proving that meat in a sealed jar did not produce flies? A. Aristotle B. Hooke C. Redi D. Spallanzani
3. Which of the following statements best describes the modern cell theory?
A. all organisms are composed of numerous cells B. different cells are specialized to perform various functions C. the cell is the basic unit of structure and function of all organisms D. the total activity of an organism depends on the function of some specialized
cells
4. Which scientist invented one of the first great tools for biological research, the microscope?
A. Brown B. Leeuwenhoek C. Schleiden D. Virchow
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 4 of 20 Name: _________________________ School: __________________________
5. Which instrument was used to produce the following image of mitochondria?
A. compound light microscope B. scanning electron microscope C. simple light microscope D. transmission electron microscope
6. Which is a difference between scanning electron microscopes (SEM) and
transmission electron microscopes (TEM)? A. SEM are battery operated, while TEM are electrical B. SEM has two ocular structures, while TEM has one ocular structure C. SEM uses only fine adjustments, while TEM uses only coarse adjustments D. SEM view in 3-dimensions, while TEM view in 2 - dimensions
7. If the microscope you are using has an eyepiece with a magnification of 10X and an objective with a magnification of 4X, what is the total magnification?
A. 2.5X B. 6.0X C. 14X D. 40X
8. The diagram below shows the diameter of the field of view (in mm) under low power. Calculate the field of view under medium power if the low power objective is 4X and the medium power objective is 10X?
A. 1.6 mm B. 4.0 mm C. 16 mm D. 40 mm
9. If the field of view in the diagram has a diameter of 1.6 mm, what is the approximate
size of a cell?
A. 100 B. 200 C. 300 D. 400
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 5 of 20 Name: _________________________ School: __________________________
10. When using the microscope you find that the cell you want to observe is in the upper right-hand area of the field. To center the cell, you would move the slide in which direction?
A. down and left B. down and right C. up and left D. up and right
11. The ability of a microscope to show two points close together as two separate
images are referred to as which? A. contrast B. magnification C. ocular power D. resolution
Use the diagram below to answer questions 12 and 13.
12. Which structure is used to move the stage up or down to bring an object into focus when viewing under low power?
A. 3 B. 4 C. 6 D. 7
13. Bill tries to view a specimen under the microscope but finds it too dark. Which
structure would be used to correct this problem?
A. 1 B. 5 C. 7 D. 8
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 6 of 20 Name: _________________________ School: __________________________
14. Chlamydomonas is a motile, unicellular and photosynthetic organism with a membrane-bound nucleus, mitochondria, and chloroplasts, but lacks a cellulose cell wall. Which statement best describes Chlamydomonas? A. it is a eukaryotic animal because it is motile and has mitochondria B. it is a eukaryotic protist because it has membranous organelles and is unicellular C. it is a prokaryote because it lacks a cellulose cell wall and a nuclear membrane D. it is a true plant because it is photosynthetic and has a cell wall
15. Which is a characteristic of both human and bacteria cells? A. they both have a nucleus B. they both have equal amounts of DNA C. they both have extracellular fluid D. they both have membrane bound organelles
16. Which organism has cell walls? A. domestic cat B. giant kelp C. parakeet D. rabbit
17. Golgi bodies, endoplasmic reticulum, and vacuoles are examples of which term?
A. bodies B. cells C. organs D. organelles
18. A unicellular organism engulfs food by phagocytosis. Which cellular organelle would be important in breaking down the food? A. chromosome B. lysosome C. mitochondrion D. ribosome
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 7 of 20 Name: _________________________ School: __________________________
19. In which of these cells would you expect to find the most chloroplast activity?
A. growing muscle cells B. liver cells C. plant leaf cells D. plant root cells
20. What are mitochondria?
A. they are initiators of cell divisions B. they are organelles in which proteins are synthesized C. they are structures in the nucleus where RNA is manufactured D. they are structures that create energy in a cell
Use the diagram below to answer questions 21 and 22. 21. Which organelle allows the movement of materials into and out of the cell?
A. A B. B C. C D. D
22. What is the organelle that functions as a storage and packaging site for certain products that are formed elsewhere in the cell? A. A B. B C. C D. D
B
C
A
D
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 8 of 20 Name: _________________________ School: __________________________
23. A cellophane bag contains starch and water. The bag is surrounded by water and iodine. The bag is permeable to water and iodine but not to starch. Which type(s) of molecule(s) will move into or out of the bag?
A. both water and iodine B. iodine only C. starch only D. water only
24. What process is pictured in the diagram at the right?
A. diffusion B. exocytosis C. phagocytosis D. pinocytosis
25. Why do local grocery stores spray fresh vegetables with water on a regular basis? A. to keep them clean B. to maintain a hypertonic situation C. to maintain a hypotonic situation D. to maintain an isotonic situation
26. Which of the following would be the smallest cell?
27.
27. Which of the following will complete the following chemical equation? light 6CO2 + 12H2O -------------> C6H12O6 + _____ ?
A. energy B. 12H2O C. 6O2 D. 6CO2 + 6O2
Cell Surface Area /Volume Ratio
A. 1 0.033 : 1
B. 2 0.3 : 1
C. 3 3: 1
D. 4 30: 1
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 9 of 20 Name: _________________________ School: __________________________
Use the diagram below to answer questions 28 and 29. 28. If the solution in X contains a 60% glucose solution, what type of solution would be
present? A. hypertonic B. hypotonic C. isotonic D. neutral
29. If solution X represented an amoeba, what would eventually happen to the
organism?
A. crenation B. cytolysis C. plasmolysis D. turgor pressure
30. Which of the following statements shows that photosynthesis and cellular respiration are complimentary processes?
A. energy is produced in both reactions B. they have the same products C. they have the same reactants D. the products of one are the reactants of the other
31. Which scientist classified all living organisms into two kingdoms, the plant kingdom
and the animal kingdom? A. Aristotle B. Brown C. Schwann D. Virchow
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 10 of 20 Name: _________________________ School: __________________________
32. Which prokaryote can live in acid runoff or sulfur vents of volcanoes? A. archaea B. bacteria C. eubacteria D. protista
33. Which of the following correctly describes the branch of biology that deals with the classification and naming of living things? A. botany B. ecology C. taxonomy D. zoology
34. Using numbers to represent taxonomic categories as listed below, which sequence indicates progressively increasing specificity? Class - 1; Phylum - 2; Order - 3; Family - 4; Species - 5; Genus - 6. A. 2-3-1-5-4-6 B. 2-1-4-5-6-3 C. 4-1-3-2-6-5 D. 2-1-3-4-6-5
35. When proceeding down the classification system from species to kingdom, there is increasing _____________ among the organisms. A. activity B. diversity among individuals C. individuality D. similarity among individuals
36. Which of the following would fix the error in Capsicum Frutescens?
A. it should read capsicum Frutescens B. it should read frutescens capsicum C. it should read Capsicum frutescens D. it should read frutescens Capsicum
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 11 of 20 Name: _________________________ School: __________________________
37. According to binomial nomenclature, the organism Acetabularia mediterranea is most closely related to which of the following organisms?
A. Acetabularia crenulata B. Crenulata acetabularia C. Mediterranea crassa D. Mediterranea crenulata
38. Which modern classification technique is based upon similar amino acid sequences?
A. comparative anatomy B. comparative biochemistry C. comparative embryology D. phylogeny
39. What is the simple tool which consists of pairs of opposite statements used by biologist to identify organisms?
A. dichotomous key B. DNA testing C. gel electrophoresis D. polymerase chain reaction
Use the following diagram to answer question 40.
40. Which organism is most closely related to Caratopsia?
A. Ankylosauria B. Ornithopoda C. Pachycephalosauria D. Stegasauria
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 12 of 20 Name: _________________________ School: __________________________
41. Which organism would reproduce asexually by binary fission?
A. bacteria B. bread mould C. fern D. plasmodium
Use the diagram to answer question 42.
42. What is the correct sequence of events in the Lytic Cycle of a virus?
A. A,B,C,D,E,F B. B,A,E,F,C,D C. C,A,E,F,B,D D. C,E,A,F,B,D
43. Specimen X belongs to Kingdom Protista. What can be concluded about it based on
this classification? A. it is aquatic B. it is multicellular C. it is eukaryotic D. it is prokaryotic
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 13 of 20 Name: _________________________ School: __________________________
44. An organism was discovered that could undergo photosynthesis, is multi-cellular but lacked roots and leaves. What Kingdom would this organism best fit into?
A. bacteria B. fungi C. plantae D. protista
45. A botanist discovers a new species of plant in a tropical rainforest. After observing
its anatomy and life cycle, the following characteristics are noted: xylem and phloem present and no seeds. To what classification is this plant most closely related?
A. conifers B. ferns C. flowering plants D. mosses
46. Which structure acts as an anchoring system in mosses?
A. anthers B. rhizoids C. root system D. xylem
47. What is the purpose of double fertilization within flowering plants?
A. one fertilization creates the seed and the other creates the fruit B. one fertilization creates the zygote and the other creates a food source C. one fertilization creates the egg and the other creates the seed D. one fertilization creates the ovule and the other creates the fruit
48. Which group contains the cone bearing trees?
A. angiosperms B. bryophytes C. fungi D. gymnosperms
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 14 of 20 Name: _________________________ School: __________________________
49. The leaves of a plant are drying out and wilting from a lack of water. What structure in the plant may be at fault?
A. anther B. phloem C. rhizoid D. xylem
50. Which structure in the diagram contains the ovules?
A. A B. B C. C D. D
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 15 of 20 Name: _________________________ School: __________________________
Part 2: Constructed Response Total Value: 25 Marks Instructions: Complete each question in the space(s) provided. Be sure to write
clear and concise answers. 1. Using ONE (1) example, explain how the work of an early biologist has contributed
to the modern cell theory. (2 Mark) _____________________________________________________________________
2. Students used a compound light microscope to examine some skin cells. They
estimated the diameter of the field of view to be 3.5 mm. They also estimated there were 40 cells side by side across the field of view. Calculate the size of each skin cell. Show all your calculations. (2 Marks)
The specimen size is calculated by dividing the field of view by the number of cells side by side. The cell size of a skin cell in this calculation is 87.5 um.
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Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 16 of 20 Name: _________________________ School: __________________________
3. In November 2010 three teenagers were found after surviving 50 days adrift in the Pacific Ocean. Near the end of their ordeal they resorted to drinking sea water. Why would this have been disastrous for them if they were not rescued? (2 marks) _____________________________________________________________________
- Drinking saltwater puts cells in a hypertonic situation where water will move out of the cell, causing the cell to shrink (crenate) and unable to function properly. - This translates into a situation of dehydration (loss of water) and a potentially dangerous health impact over time.
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Using common names can be misleading, confusing, and not specific enough. Other examples may include starfish or seahorse.
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 17 of 20 Name: _________________________ School: __________________________
5. Dichotomous keys are important tools scientists use to help them classify organisms. Use the images below to create a dichotomous key. (3 Marks)
Dichotomous keys will vary but must include: - 6 pairs of opposite statements - each pair of statements must refer to some characteristic of the organism in question. - each organism must be identified with a name or other designation.
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 18 of 20 Name: _________________________ School: __________________________
6. A 390-million-year-old fossil has yielded new insights into the evolutionary origins of the front claws of scorpions and horseshoe crabs. The fossils recovered from this region, known as the Hunsrück Slate, are extremely durable and have previously produced other arthropod fossils such as shrimp-like creatures, scorpions, sea spiders and trilobites.
What are TWO (2) evidences that these archaeologists could use in order to concretely classify this fossil? (4 Marks) __________________________________________________
The evidences that can be used in this circumstance would include; comparative anatomy, phylogeny and cladistics, and possibly fossil record. Details on each evidence can be found in your textbook on pages 113-117.
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Answers should include: - they are dependent upon moisture for survival; nutrients and reproduction - they are dependent upon the processes of diffusion and osmosis to transport nutrients - grow low to the ground and can hold water like a sponge enabling them to survive in periods with little to no water - their root structures called rhizoids anchor them to surfaces - water is essential for fertilization to occur
Biology 2201 Midterm Examination January 2012 Time: 2 Hours Page 19 of 20 Name: _________________________ School: __________________________
8. Using a diagram, describe the life cycle/reproduction of any ONE of the following: (4 Marks)
Pollination of a flower occurs when the pollen, the male gamete, found on the anther of the flower is carried to the stigma, the female struture of the flower by a pollinator (bee, bird, etc). The pollen must be accepted by the stigma. Fertilization only occurs when the sperm nuclei meets with the eggs found in the ovule at the base of the pistil of the flower. This occurs after pollination since the pollen tube must form in order for the sperm nuclei to travel to meet the female gamete.
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- some flowers, perfect flower, have both male and female structures - seeds have a hard case to protect the plant inside from adverse conditions like drought, cold, etc. - the endosperm (fruit) surrounding seeds also helps to promote germination and spread of the flower - containing xylem and phloem to enable growth of stalks - colourful petals to attract pollinators - large leaves, sepals to maximize photosynthesis
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Monocot: - one cotyledon - leaf veins parallel - vascular bundles scattered - multiples of three petals Dicot: - two cotyledons - leaf veins netlike - vascular bundles arranged in a ring - multiples of four and five petals
