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AP Biology Lab Write-up Requirements I. Answer all of the questions (of the sections we did in lab); fill in all of the provided tables and graphs fully (and very neatly). Pen or pencil is fine. II. Typed conclusion: a. Purpose: Describe the purpose/objectives of the lab and explain the biological importance of the lab related to our topic of study. See the lab manual’s overview, objectives and introduction sections of that lab—your purpose should address these first few sections of the lab book. b. Data/Conclusion: What happened? Explain what your results were. Discuss what was measured referring the reader to specific data tables/graphs related to the important points/trends. Also discuss what was learned (think about the purpose/objectives) and support your learning with evidence from your data. Finally, how does this conclusion compare to your original knowledge on the subject? c. Errors Analysis: Describe at least 4 errors that could have occurred during the experiment. What could have been the effect(s) of these errors on your group’s data? Provide evidence for their effects with a few of those data points or observations from the lab. d. Safety: Write about the safety hazards and safe practices involved with this lab. (some labs will have large safety sections.) Note the hazards of the different chemicals involved. (MSDS are online) e. Big Picture: How are the experimental results useful to the real world? Who may be interested in this data? Also how might you modify the lab to study a related biological system? Ie. Lab 1 Example: test various types of live human tissues in varying concentrations of a glucose solution. Examine the cells’ reactions to the different solutions and examine different tissues’ membrane structures. See if there is a correlation between membrane structure and reaction to the glucose solution concentrations for live human cells.
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