Improvements Needed Post “Safety Lab” Most students lost points from the “General Record-Keeping Procedures” section. Better titles are needed: – The title should describe the goal of the experiment. – “Safety Lab” does not describe the entire goals of the lab Make sure to read the entire procedure before starting your experiment. Reminders: – Biotechnology History Presentation is due on Friday – A copy must be ed to – Turn in your homework “Biotech Boom…”

Cheese Production: The Evolution of Cheese-Making Technology

This to change from the manual: Hypothesis – Come up with your own hypothesis & make sure to include all of the curdling agents in your hypothesis. Chymosin is currently unavailable, but hopefully will be available tomorrow or Friday. Leave space in your notebook to include this curdling agent Procedures Step #2: – Each group will be testing all for curdling agents, not a single agent assigned by Mr. Young. – Make sure you label your tube by writing on a piece of tape, not of the tube itself. Step #3: Use the Vortex instead of shaking the conical tube by hand. You will stop after Step #5 today & will continue the lab after 24 hours. Data Analysis: you should generate an excel spread sheet that will be glued into your lab notebook. Hand-drawn graphs will not be accepted Witnessing will be done by Mr. Young

09/05/2013 Chymosin is now available & can be found in a test tube on the labeled test tube racks Gloves & eye protection (your prescription glasses will work) are required for this lab Complete your initial 15 minute incubation (checking your samples according to the lab manual), and return them to the conical tube racks for a 24 hour incubation at 37 °C. Your remaining time will be for you to work on your Biotech History Presentation (due tomorrow!) We will meet in the lab again tomorrow. Don’t wait for Mr. Young to tell you to get started, get to work!

09/06/2013 Ignore the question posed in Step #8 Once your completed your data collection, post your results on the white board in the lab. Take a picture of the class data before you leave today so that you can include a class average for all the data points & generate an additional graph in your Data Analysis Section. Your excel graphs must be glued or taped into your lab notebook & if you need me to print your graph please me a copy of it over the weekend Review “Writing an effective experiment conclusion” that was handed out on the first day of class. This will also be available online at consolaquatic.com, under the most recent Biotech post. Keep my scales CLEAN! Don’t wait for Mr. Young to tell you to get started, get to work!

Writing and Effective Experiment Conclusion 3 Parts: REE, PE, PA – REE: results with evidence and explanation Answer the purpose question Give data to support your answer Explain support or refute for the hypothesis – PE: possible errors Experimental error (do not include things such as measuring wrong or calculation wrong) Good error: something inherent in the experiment that may not be as efficient as possible Give recommendations to improve the experiment, ways to fix the error

Writing and Effective Experiment Conclusion – PA: practical application What is an application of the experiment? How are the finding valuable?