What is this apparatus?

What materials are in it?  Why was it used?
 
 

  Beginning thin layer chromatography.

What is the white thing?  What is special about it?
What is the green stuff?
Why is she being careful not to touch the capillary tube to the white thing?
Is this enough green stuff?
 

  One set of results.

Be able to explain what this represents.
 

  Another set of results.

Be able to explain what this represents.
 

  What is in the tube ... be complete.

Why use these materials?
 

   Note the top of the tube.

What is there ... be precise.  What was its source?
 

  A geranium at the beginning, in the light.
 

  What was done to this?

Why is it white?
 

  What is in the beaker ... be complete.
 

  Why the dark outline of a cow here? (It really is there!)

Why are some areas of the leaf lighter and some darker?
Which test was done?
What do the results indicate?
 

  What is in these tubes ... be complete.

Why are they in the dark?
What did the final results show?

  At the beginning. Before foil was wrapped around them and they went to the dark.
 

After being in the dark for several days.

What is in these tubes ... be complete.

  Note the bubbles.

Why the color differences in the tubes?
 
 
 

  Tubes on the left are fresh.  Tubes on the right are two days old. All were in the light.

Explain the differences.

After being in the light for several days.
 

   Tubes that were in foil, with pH results.

The tube on the left just had the foil removed.
The tube on the right had the foil removed several hours ago and has been in the light since then.
 
 
 
 

Photos by Steve Muzos © Austin Community College

Last updated by Steve Muzos Octoberber 10, 2003

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