Biology 12 Diffusion lab Core Competency Self Assessment

While working on the glucose solution lab, I effectively communicated with my partner to coordinate our tasks for setting up the beaker. My responsibility was getting the dialysis tubing, and my partner handled the string, and together, we skillfully tied the string to the dialysis tube. Collaborating on estimating and pouring 10 mL of the starch solution into the tube required teamwork and good communication.

Engaging in critical and reflective thinking was crucial throughout the experiment. I focused on finding the best technique to tie the string, ensuring no air bubbles in our cell. Submerging the cell in the beaker presented challenges initially, but pouring more water in the beaker proved to be a helpful solution. Upon observing the results after 24 hours, we identified a leakage issue with the glucose solution, likely stemming from not tying the knots tightly enough. This became a valuable lesson for improvement in future experiments.

The process of analyzing our findings involved critical thinking as we speculated on which molecules diffused in or out and which ones did not. Using reasoning and deduction based on our 24-hour results, I drew conclusions about the diffusion of different molecules. This experience not only honed our laboratory skills but also sharpened our ability to think critically and draw informed conclusions from experimental outcomes.

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