Hand in to your discussion leader a typed lab report. You and your group members can submit identical cover pages and data tables, but your introduction and discussion must be written by you, in your own words. (1) Cover page: including the title of the experiment (in this case use “Comparing cell contents of plants from different environments” ), your name, the date, your discussion leader’s name, and the number of your discussion section. Also include the names of all your partners and their discussion section TAs. (2) Introduction: State your hypothesis about whether the concentration of solutes inside the cells of plants from different environments should be the same or different. Explain briefly why your hypothesis makes sense to you. State the prediction you generated from this hypothesis and describe (in general terms) how you tested it. You don’t need to detail the methods (because they are already in the lab guide), but you do need to define an isotonic point (especially what you consider to be its relationship to the cell’s internal solute concentration) and explain how you used isotonic points to test your prediction. (3) Results: On a separate page, summarize your data from tables 3 (onion cells) and 4 (three other kinds of cells) into one table, clearly labeled. (4) Discussion: In about 2 pages, explain what an isotonic point is and compare the isotonic points of your specimens with each other and with sea water. Does there appear to be a relationship between isotonic points and environment in which the plants are found? If not, then what cellular mechanisms (salt pumps, impermeable cell membranes, or others?) might these plant cells be using to maintain a stable internal environment despite widely differing external environments? Include some of the analysis and discussion questions raised on the previous page.
P.s. The first document is a model of the report (Pg 26-43 in the lab manual). Just write as it
Those pictures are the results of the report
The last document – the lab manual Page 44-60 are for this report we are working on, just ignore other pages.
All the information is in the lab manual.