Pigment Chromotography Lab

PART A : Chromatography of Plant Pigments : Document 

PART B :   WEB Research

1.              WEB RESEARCH :Find information and create a chart ON A SEPARATE PAPER

a.     Find five  Photosynthetic Organisms ( Find at least one Protist)

b.    List what Kingdom the organism is part of? ( Protists, Plants,etc.)

c.     List  three characteristics of the organism?  (evergreen tree? Microscopic?)

d.    List where it lives (Boreal Forest, Ocean, Tropical, Deciduous Forest…)

e.     Include a picture, diagram of photo of the organism.  Label the image.

2.              WEB RESEARCH: Find information about each of the pigments; Chlorophyll a, Chlorophyll b, Carotenes,  and Xanthophylls.   ANSWER ON A SEPARATE PAPER

A.   What does each name mean in Greek? ( or Latin?)

B.   What kind of macromolecules are these pigments?

C.   What are the structures of the molecules?  A basic answer is expected, but full molecular structures are easily available on the Web.  You may print a photo or diagram of the molecular structure from a Web source. 

D. What is the purple pigment in the purple cabbage?

E. BEYOND : What wavelengths of light are absorbed by these pigments, in nanometers?

Pigment Chromatography Lab Report Requirements  

PART A:

1. Data Tables :

a. Distances Pigments Moved

b. Rf Values, Calculations

2. Two Questions on the lab paper

PART B:

Web Research

C. OTHER:

1. Group submits the actual chromatography results, the paper with the pigments.

2. A diagram of the lab set up

3. Conclusions : This is a flexible answer section.  The minimum is two sentences about the lab activity.

For example, compare the sample Rf values to your Rf values and identify some of the pigments.

OR Describe the differences in your samples.  You used different papers;which worked best? Which plant type gave the best results?

The lab report must be hand-written or printed.  

You may share a Google doc with Mr. Ulmer, however, it must also be printed.