Week 7 laboratory reflection Bio Lab

Name: Dylan Kuharik Laboratory Reflection: Plant Transpiration (Part 2) Instructions: Make sure to scroll through the entire document to answer all questions. It would also help with grading if you put your typed answers in a different (but readable) color font . Save and upload your completed assignment to the associated assignment page on Canvas. It is the student’s responsibility to confirm that the correct file was submitted to Canvas by the due date. 1. (.5pts) Transfer the data you collected on page 6 of your laboratory protocol packet to the tables below (type in your values). Vial # Treatment Initial mass (g) Final mass (g) Change in mass (g) Transpiration rate (g/day) 1 Regular Light 58.72 45.77 12.95 1.85 2 Regular Light 49.58 45.31 4.27 0.61 3 Regular Light 48.13 46.74 1.39 0.20 4 Regular Light 56.25 48.52 7.73 1.10 5 Low Light 59.43 56.71 2.72 0.39 6 Low Light 60.02 58.21 1.81 0.26 7 Low Light 58.88 54.40 4.38 0.63 8 Low Light 57.94 54.21 3.73 0.53 1

2. (4pts) Create a graph that accurately illustrates the results from your plant transpiration experiment. Your graph must include all relevant elements, including a figure caption. Your caption should describe the graph, include a brief description of the experimental design (~1 sentence), and a results statement that includes your statistical findings (see hint below on how to do this). If needed, see additional resources linked within the assignment page on canvas. 1 2 3 4 5 6 7 8 0 10 20 30 40 50 60 70 Comparison of Initial and Final Mass (in grams) under Regular and Low Light Conditions Initial Mass (g) Final Mass (g) Sample Number (#) Mass (g) Figure 1: Graph compares initial and final mass under regular and low light conditions. Despite higher transpiration in regular light, no significant difference was found (t(6) = 1.34, p = 0.2277). 2 Note on figure captions: A complete figure contains both an image and a caption. Together, these two parts should provide enough information that a reader can understand the data presented without referring to the text. A figure caption should contain a concise description of the graphic allowing a reader to understand the figure.  The information contained within the caption should include a description of the graph (similar to a title), a brief statement of the methods necessary to understand the figure, statistical information, if applicable.  The caption should never begin with the words “Graph of…” or “Figure of…”  Example: Figure 1. Mean weight of golden-mantled ground squirrels was 150 g greater than that of thirteen- lined ground squirrels prior to hibernation. Although both species lost weight during hibernation, golden- mantled ground squirrels exhibited greater weight loss. Hints on how to write a results statement and report statistical analyses: For any t-test you perform, you should report the t-statistic, degrees of freedom (df), and p-value. These should be reported in parentheses following a statement that explains the t-test result. For example, “There was no difference between the mean speed (mph) of mice that ate a high protein diet compared to mice that ate a low protein diet (t = 0.932, df=10, p =0.37).