Here is all the information you might need and also:

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trends) Means with standard deviations if applicable; Scatterplot with trendline Include what type of figures you developed (e.g. "means and standard deviations were plotted in a bar chart...") Write in your own words; do not copy straight from the protocol sheets/lab manual Results: Use past tense Do not discuss hypotheses or predictions Main components o Paragraphs: 1 paragraph per figure or table Include facts only (no explanations or interpretations) Four major points of the results section. The paragraph should flow and not simply list in this order. 1. Trends/patterns 2. Important/meaningful values (e.g. means + stdev; equation of trendline; etc) 3. Statistical significance if relevant (not applicable for Population Growth Lab) Reference your figure/table "Plant height increased with nutrient addition (Figure 3)." "As seen in Figure 1, ......" If the results were significant based on standard deviation, indicate the direction (e.g. larger/smaller, greater/lesser, higher/lower, increased/decreased). o Figures/tables Visually represent trends (scatterplot) and comparisons (bar graph) Must reference in the text by number Label axes with units Caption: . Components: Figure #. Title statement. Additional information. o Number: numerical order throughout document (Ex: Figure 1, Figure 2...) O Title statement: general statement (not complete sentence) o Additional information: in complete sentence(s) to help figure stand alone, including relevant statistics O Be concise but include all relevant information. o Exact captions requirements will differ among courses. . Figure: caption below and same width as figure . Table: caption on top and same width as table Discussion: Minimum of two in-text citations Start narrow o Prediction and hypotheses: 1 paragraph Restate major trends and relate to prediction Null hypothesis: reject or fail to reject Alternative hypothesis: reject or support O Interpretation (Why?): 1 paragraph Make sense of your findings Support with literature; use in-text citations. Unexpected results: think of (and read about) some possible explanations for the unexpected results. Do not be quick to discredit yourself. Think beyond human error. o Limitations (be specific and logical): 1 paragraph What could be influencing the data other than the variables manipulated? Next you can include procedural and experimental errors, etc. . End broad: 1 paragraph o Big picture - why is your study important outside of the classroom (i.e. who would be interested and why) o Relate your study to real world applications o Include ideas for future studies. What future studies could you conduct that may build on your findings for the scientific community Note: future studies do not include suggestions of "increase # of replicates" or basic technique improvements Literature Cited: Four references minimum - all must be used within paper. Cite within your paragraphs. . . In-text citations may be in the Introduction, Methods, and Discussion sections Use consistent formatting for citations - APA Writing tips: Sentences should flow within a paragraph and be enjoyable to read. Avoid things like 'The dependent variable is...', 'The research question was...' View each section as somewhat independent. o You do not want the reader to have to flip back to another section to understand the experiment. Do not include raw data.LSU Department of Biological Sciences Lab Report Writing Guide BIOL 1005 Title: . Concisely convey what was done in the experiment. . Include independent and dependent variables. Include the scientific name(s) of model organism(s). Introduction: Minimum of three in-text citations Start broad o Background information: 1-2 paragraphs Explain important topics in the study. In-text citations needed Narrow towards your study: 1 paragraph o Introduce the problem or pattern to be studied. Discuss your model organism(s) or study system(s). Why is it an appropriate model organism(s) or study system(s)? End narrow: 1 paragraph o What is the objective of your study? o Include hypotheses, and predictions with reasoning. Methods: . Use third person, past tense, passive voice O EX:" was measured...' o Do not reference your TA, lab partners, or yourself. Three main parts (include as sub headers): o Experimental design: 1 paragraph how your experiment was set-up; # individuals & replicates Assume the reader understands how to use equipment. Do not include steps like how to squeeze the pipette, collect termites from the container, etc. o Data collection: 1 paragraph what you measured and how you collected your data Data analysis: 1 paragraph Include appropriate data analysis, but do not explain what those analyses mean (do not explain trends). Means with standard deviations if applicable; Scatterplot with trendline Include what type of figures you developed (e.g. "means and standard deviations were plotted in a bar chart...") . Write in your own words; do not copy straight from the protocol sheets/lab manual Results: . Use past tense . Do not discuss hypotheses or predictions Main components o Paragraphs: 1 paragraph per figure or table Include facts only (no explanations or interpretations) Four major points of the results section. The paragraph should flow and not simply list in this order. 1. Trends/patterns Important/meaningful values (e.g. means + stdev; equation of trendline; etc) 3. Statistical significance if relevant (not applicable for Population Growth Lab) 4. Reference your figure/table o "Plant height increased with nutrient addition (Figure 3)." "As seen in Figure 1, ......" If the results were significant based on standard deviation, indicate the direction (e.g. larger/smaller, greater/lesser, higher/lower, increased/decreased). o Figures/tables Visually represent trends (scatterplot) and comparisons (bar graph) Must reference in the text by number Label axes with units Caption: . Components: Figure #. Title statement. Additional information. o Number: numerical order throughout document (Ex: Figure 1, Figure 2...) O Title statement: general statement (not complete sentence) o Additional information: in complete sentence(s) to help figure stand alone, in relevant statistics O Be concise but include all relevant information. Exact captions requirements will differ among courses. . Figure: caption below and same width as figure . Table: caption on top and same width as table Discussion: Minimum of two in-text citations Start narrowData Collection: Number & Size of Colonies Remove your plates from the incubator and examine them for colonies of bacteria. Do not remove the parafilm and/or open the plates. E. coli will have white or cream colonies, and S. marcescens will have pink or orange colonies. INSTRUCTIONS: Measure the diameter of each colony after 24, 48, and 72 hours Fill in yellow highlighted cells with your data (Control and Treatment - Looking at the plate from the bot Fill-in the green highlighted cells with the names of your treatments, Hold the clear ruler up to each colony to determine each diameter to also edit the figure titles with your treatment names he # of colonies per diam - Repeat for each of your four plates Click on the second Excel tab (%% Cover) below to Input data for % Cover Report description of what the figure shows. NOTE: you do not include the tables of raw Input data from tables into Excel Template on Moodle for figure output Think about two main questions: 1) Does (you . 0. 0, 0. 0. O_ youdependet variable) impact the rate of growth of the population, ant 2) Are your bacterial populations growing exponentially? Why would you or why w 2 0.0 10. 0 9. 0. TIME (HOURS) Control Population size (N colonies) Table 1. Control Plate Table 2. Treatment Plate A Number of Colonies Diameter O hrs 24 hrs 48 hrs 72 hrs lameter {Treatment A} D hrs 24 hrs 48 hrs 72 hrs 24 48 0-2 mm 0 0-2 mm 0 Population 0 3-6 mm size (# 2-4mm 0 7-10 mm colonies) #-6mm 7-10 mm 6mm >10 mm 0 10 mm Table 3. Treatment Plate B Table 4. Treatment Plate D Number of Colonies {Treatment B} Ohrs 24 hrs 48 hrs 72 hrs Diameter Ohrs 24 hrs 48 hrs 72 hrs 0-2 mm Population 0 0-2 mm 0 size (# 2-4mm 3-6 mm 0 4-6mm 3-6 mm 7-10 mm 0 colonies) >6mm $10 mm 7-10 mm 0 >10 mm each plate plates are in seperate tables) depending on your chosen study. Be sure Treatments: Control { Treatment Plate B} (Treatment Plate A) Treatment Plate C} lata in your Written growth. (20 dots equal 20% bacterial growth, etc.) if so, how? wouldn't you expect them to? Does (your independent variable) make a difference? Control Table 5. Percent bacterial plate coverage for each plate at 24, 48, & 72. blonies 30.6 >6mm 4-6mm percentage of the plate covered by bacteria (or the population size of the bacteria). 0.4 2-4mm Each dotted plate has 100 randomly placed dots on it, which you will use to estimate the Sampling Time (hours) 0.2 48 0-2mm not to count the same point twice! Record this number in the data collection table below for Count the number of dots on the dotted plate under which there is bacterial growth. Be careful Data Collection: Percent Cover of Colonies - Note: you are not counting colonies here...just how many random dots have growth underneath them - For example, if all the dots have bacterial growth underneath, then approximately 100% of the plate has bacterial 24 48 Time (hours ) (Treatment A} N >6mm 4-6mm Number of colonies 2-4mm 0-2mm 24 48 72 % cover = 21% Time (hours) {Treatment B}