pH livingsystems writeup

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

BACK