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_A_!,_,_g_W_e_R_K _£_Y_ Nam e Bio. 1000 Supplemental Instruction Program Dr. Osborne Lab Quiz 1 Base your answers to questions 1 through 5 on the information below and on your knowledge of biology. An investigation was performed to estimate the amount of absorption of different wavelengths (nanometers) of light by a photosynthetic organism. The following data were collected: 550 nanometers. 40% absorption; 450 nanometers, 85% absorption; 650 nanometers. 70% absorption; 500 nanometers, 60% absorption; 600 nanometers. 50% absorption. 1. Complete both columns of the Data Table so that the nanometer values are increasing. [1] DATA TABLE WAVELeN'Ti j ,t{gs'ClRfrID N 450 "'''''' 85~. 5 aD _" "'" c,o ~ 650"'' 40% G. 00 t\ f4o\. 50% "50.,.." .707. ~ 4-V~L£1J9n/ (",...) Using the information in the Data Table, construct a graph on the grid provided next to the Data Table, folloWing the directions below. 2. Mark an appropriate12. scale on each axis. A structure found[1] in cell C which is not 3. Label each axis and indicate cell Athe orunits. [1] (1) chromosome (2) 4. Plot the data and then (3) connect the points. [1] centriole (4) I 2 I foun d .3 in either cell B is nucleus cell wall 5. Which inference theB data collected? 13. A structure foundis best thatsupported is foundinby cell in neither (1) The 550-nanometer wavelength is probably not very effective cell A nor cell C is for photosynthesis. (1) chloroplast (2) nucleus (2) Increasing the wavelength of increase the rate of (4)light will always cell wall (3) centriole photosynthesis. mounte 14 WhThea450-nanometer wavelength corresponds to green light used (3) in • en thin section of living plant tissue was d on a photosynthesis. slide and observed under microscope, it appeared that (4) The rate of photosynthesis is greatest a when the photosynthetic some organism is exposed to a wavelength of 550 nanometers. of the cells were without nuclei. Which is the most likely explanation for this observation? (1) Cell nuclei ca only be seen with the electron microscope. n (2) Some nuclei were no in the plane of the section. t (3) The cells had insufficient light t form nuclei. o (4) Th tissue section did not contain nuclei. 2 6. The diagram at .the right shows an acorn I a metric ruler. How long is the and 7. A response of some plants to exposure to light is a sudden enlargement of the stomates. This acorn in millimeters? makes possible (1) an 2.5increased mm (2) 25 mm (3) 250 mm (4) 2,500 mm (1) intake of carbon dioxide (2) intake of liquid water (3) intake of oxygen (4) discharge of carbon dioxide The closing of stomates on a leaf would have the least effect on the (1) diffusion of carbon dioxide into the atmosphere (2) release of water vapor from the leaf (3) size of the glucose molecules within the cell (4) diffusion of water molecules into the leaf Base your answers to questions 9 and 10 on the diagram of the internal view of a bean seed and on your knowledge of biology. C 4 9. In which structure would most of the stored food for the embryo be found? (1) A (2) B (3)C (4)D 4-10. The epicotyl and the hypocotyl are represented by (1) A and C (3) Cand D 3 (2) Band D (4) Aand B 11. The internal structure of chloroplasts is best studied with the aid of which type of microscope? (1) simple (2) compound light (3) electron (4) phase contrast Base your answers to questions 12 and 13 on the diagrams below, which represent groups of cells, and on your knowledge of biology. CELL-C ' .. . Aoot Tlaue WAVELeN'Ti j ,t{gs'ClRfrID N 450 "'''''' 85~. 5 aD _" "'" c,o ~ 650"'' 40% G. 00 t\ f4o\. 50% "50.,.." .707. .3 12. A structure found in cell C which is not foun d in either cell A or cell B is (2) (1) chromosome nucleus (3) centriole (4) cell wall of bacterial counts of three 15. The graph below was developed asa result of an investigation I identical cultures grown at different temperatures. Which conclusion might be correctly drawn 13. A structure found that is foundin cell B in neither from this graph? cell A nor cell C is (1) chloroplast (2) nucleus (1) The culture contains no bacteria. (4) cell wall (3) centriole (2) Refrigeration retards bacterial reproduction. a 14 Wh (3) Temperature is unrelated to the bacteria reproduction rate. mounte thin section of living tissue was d on a • en(4) Bacteria cannot grow at a plant temperature of 50 C. slide and observed under a microscope, it appeared that some of the cells were without nuclei. Which is the most likely explanation for this observation? (1) Cell nuclei ca only be seen with the electron microscope. n (2) Some nuclei were no in the plane of the section. t I( 3.000 (3) The cells! 2.000 had insufficient light t form nuclei. 1.000 o o n contain nuclei. (4) Th tissue section did not e Ilor••• P.rlod ( 2 Hour.) 16. Which group of measurement units is correctly arranged in order of increasing size? (1) micrometer, millimeter, centimeter, meter (2) millimeter, micrometer, centimeter, meter (3) meter, micrometer, centimeter, millimeter (4) micrometer, centimeter, millimeter, meter Base, your answers to questions 17 through 20 on the diagram below and your knowledge of biology. The diagram represents details of a cross-section of a corn stem as seen through the high power objective of your microscope. 2 17. The vascular bundle shown is surrounded by a sheath which is made up of a cell type called (1) collenchyma (2) sclerenchyma (3) periderm (4) parenchyma 18. In the stem, the bundle is surrounded by pith cells which are of a cell type called (1) collenchyma (2) sclerenchyma (3) periderm (4) parenchyma 19. A tissue that would conduct nutrients upwards and downwards is indicated by (1)A (2) B (3)C (4)D 2 20. The region indicated by D is a(n) (1) parenchyma cell (2) air space (3) xylem vessel (4) phloem tube