Week 1 Lab
1. Choose your lab group.
2. Learn about lab safety.
**IMPORTANT – All students are expected to wear a lab coat and goggles in lab at ALL times. As well, you are not permitted to wear shorts or open-toed shoes. If you are not dressed appropriately for lab, your TA will dismiss you. You are permitted to return to lab with proper attire and equipment, but the rules for lateness will apply (see the syllabus). If you do not return to lab with proper attire and equipment, this will be counted as an unexcused absence from lab.
3. Learn how to use a light microscope.
4. Practice using a light microscope to view specific slides of bacteria, protozoa, plant cells, and animal cells, to begin to understand what cells of …show more content…
Before putting your tip into the liquid, depress the plunger to the first stop. This stop is the stop that is calibrated to the volume on the indicator.
5. Hold the micropipettor vertically and place the tip in the liquid to be pipetted. Do not immerse the tip completely. The tip should be inserted into the liquid so that only the bottom of the tip is immersed. You do not want to immerse the pipettor itself into the liquid for several reasons: 1) you do not want to get liquid into the mechanics of the pipettor, as it may damage the pipettor. 2) There could be contaminating substances on the pipettor that could be transferred into the solution you are pipetting, which could ruin your experiment.
6. Release the plunger slowly to allow liquid to enter the tip. Wait a few seconds to ensure that the full volume is drawn into the tip. This is especially important with viscous liquids.
7. Take the tip out of the sample.
If there is notable liquid on the outside of the tip from your sample, touch the tip to the side of the tube from which you pipette, to dislodge the