Lab-Related-Essays

Lab-Related-Essays - Name _ AP Biol ogy Peri od _ Date _...

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Name __________________________________ Period _________ AP Biology Date ______________________ 1 of 16 2004-2005 AP: LAB-RELATED AP EXAM ESSAYS LAB 1. OSMOSIS AND DIFFUSION ESSAY 1992 A laboratory assistant prepared solutions of 0.8 M, 0.6 M, 0.4 M, and 0.2 M sucrose, but forgot to label them. After realizing the error, the assistant randomly labeled the flasks containing these four unknown solutions as flask A, flask B, flask C, and flask D. Design an experiment, based on the principles of diffusion and osmosis, that the assistant could use to determine which of the flasks contains each of the four unknown solutions. Include in your answer: a. a description of how you would set up and perform the experiment; b. the results you would expect from your experiment; and c. an explanation of those results based on the principles involved. Be sure to clearly state the principles addressed in your discussion.
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Name __________________________________ AP Biology 2 of 16 2004-2005 LAB 2 . ENZYME CATALYSIS ESSAY 2000 The effects of pH and temperature were studied for an enzyme-catalyzed reaction. The following results were obtained. a. How do (1) temperature and (2) pH affect the activity of this enzyme? In your answer, include a discussion of the relationship between the structure and the function of this enzyme, as well as a discussion of how structure and function of enzymes are affected by temperature and pH. b. Describe a controlled experiment that could have produced the data shown for either temperature or pH. Be sure to state the hypothesis that was tested here.
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Name __________________________________ AP Biology 3 of 16 2004-2005 LAB 3. MITOSIS & MEIOSIS ESSAY 1987 Discuss the process of cell division in animals. Include a description of mitosis and cytokinesis, and of the other phases of the cell cycle. Do not include meiosis. ESSAY 2004 Meiosis reduces chromosome number and rearranges genetic information. a. Explain how the reduction and rearrangement are accomplished in meiosis. b. Several human disorders occur as a result of defects in the meiotic process. Identify ONE such chromosomal abnormality; what effects does it have on the phenotype of people with the disorder? Describe how this abnormality could result from a defect in meiosis. c. Production of offspring by parthenogenesis or cloning bypasses the typical meiotic process. Describe either parthenogenesis or cloning and compare the genomes of the offspring with those of the parents.
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Name __________________________________ AP Biology 4 of 16 2004-2005 LAB 4. PHOTOSYNTHESIS (1) ESSAY 2004 A controlled experiment was conducted to analyze the effects of darkness and boiling on the photosynthetic rate of incubated chloroplast suspensions. The dye reduction technique was used. Each chloroplast suspension was mixed with DPIP, an electron acceptor that changes from blue to clear when it is reduced. Each sample was placed individually in a spectrophotometer and the percent transmittance was recorded. The three samples used were
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This note was uploaded on 02/25/2011 for the course BIO 1105 taught by Professor Dawkins during the Spring '10 term at McKendree.

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Lab-Related-Essays - Name _ AP Biol ogy Peri od _ Date _...

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