What to Include in Your Lab Write Up
Lab: pH in Living Systems
Introduction
- Explain, in detail, the pH scale (range, what it is measuring …)
- Explain acidic, basic, and neutral solutions in terms of their pH
- Explain acidic, basic, and neutral solutions in terms of their H+ and OH-concentrations
- Explain the importance of pH to cells (denaturating proteins)
- Explain how living things control their internal pH (buffers)
Hypothesis
The proteins in milk …
Materials
The materials used include …
Procedure
Part A
Write this in paragraph form.
Part B
Write this in paragraph form.
Results
Table 1
Table 2
Include questions, underlined, and answers here.
Conclusion
- Restate the hypothesis
- Explain the original substances you tested & their pH values that you determined
- Explain the effect of lemon juice on milk proteins (include the before & after appearance of the milk & explain why there was a change)
- Explain the effect of ammonia on milk proteins (include the before & after appearance of the milk & explain why there was a change)
- Make a final statement about the effect of strong acids & bases on the proteins in cells or cell products & explain how organisms take care of this