Lab Safety, Measurements, and Calculations for BIOL 3380 Experiment 1

BIOL 3380 Experiment 1 - Lab Report Lab Safety, Calculations, Measurements, and Solutions Name: Circle your lab section: T-AM W-AM R-AM F-AM T–PM W-PM R-PM F-PM Instructor: Jing Pan Graduate TA: Lab partner: Date: 09/06/2023

BIOL 3380 Experiment 1 - Lab Report Lab Safety, Calculations, Measurements, and Solutions Lab Report 1 is due before your next scheduled lab section. Upload your completed lab report using the submission link in your eLearning Lab section. Accepted format is work document or PDF. Insert your answers after each question. Please denote your answers by using bold , italic s, or colored font. Do NOT renumber/reorganize the questions. “Showing your work/calculations” can be achieved by typing it out, pasting in a clear image of your handwritten work, or using handwritten annotation on the document (if you have the technology to do so). Questions 1-7 (14pts): Insert clear images of the completed “Lab 1 in-lab Worksheet” for credit. 2

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8. (3pts) Using a “real world” example (like throwing darts at a dart board), compare and contrast the concepts of "accuracy", "precision”, and "reproducibility". Do NOT simply define the terms. Accuracy: how close one is to a targeted measure. A real-world example would be golfing, having the ability to get close to a hole in one. Precision: the reproducibility of a measurement, can be precise but not entirely accurate. A real- world example would be a thermometer measuring boiling water; however, the temperatures range from 99 degrees celsius to 105 degrees celsius. The temperatures are not always the same or accurate but they’re within range. Reproducibility: when results are being gathered from different individuals at a different setting with different methods or instruments. A real-world example would a research study on smoking, researchers can gather data from different countries and age groups. 9. (4pts) List four common mistakes that will cause inaccurate volume transfer using a micropipettor. -The micropipettor has been dropped on the floor or abused. -Liquid is picked up on the outside of the tip and transferred along with the measured volume of liquid inside the tip. - Touching the outside surface of the pipette or pipettor tip to the edge of a test tube or to a piece of tissue paper. -Often using uncalibrated disposable glass pipettes for transfer of liquids when the volume transferred is not important 6

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Answer the following questions according to course syllabus and “Safety in the laboratory”. 10 . (1pt) If you need a “B+” in BIOL 3380 to graduate this semester, how many points do you need to earn that final course grade? 722 points are needed. 11. (1pt) If you receive a low grade for or are unable to submit a lab report, why should this not directly impact your course grade? The lowest 30 point lab report grade will be dropped from the final grade. 12. (2pt) If you know you have conflict with your scheduled lab and would like to switch to another section, who should you contact? When? Are you guaranteed an opportunity to attend another lab section? Regardless of obtaining permission to attend a different lab section, when is your previous lab report due? To switch to another lab section, you need to contact your instructor and get their approval. Do not expect a switch at the last minute but if approved, your previous lab report are still due during your normal enrolled lab section. 13. (1pt) Both you and your friend answered a particular lab report question wrong. You received credit while your friend did not. What should you do? How will your grade be affected? Bring it to the TA and they could possibly give points back. Your grade can fixed. 14. (1pt) You worked as partners during a particular experiment. While your experimental 7

___ calculations___ should be identical the remainder of your _____ lab report__ should be different. 15. (1pt) List 2 specific examples of scholastic dishonesty that commonly occur in this lab course. Copying another student’s lab report, homework, or extra credit work. Submitting Top Hat answers when not present in the lecture room. 16. (1pt) List two things that are NOT allowed in the lab room. Eating or drinking and having/bringing visitors. 17. (1pt) In case a student is/becomes pregnant during the semester, why should they notify the Instructor? There could be experiments that are dangerous to perform when pregnant. There are different compounds that can cause birth defects. 8

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