color change in coleus, chromatoghraphy, ploar chlorophyll

Kim angelwings121NOSPAM at
Sun Dec 15 11:02:17 EST 2002

I need help with my bio work

1. After boiling a coleus leaf in water a substance cuased a color change.
Why and what was the name of the substance?

2. Which is more reliable when analyzing the results of the chromatoghraphy
lab, the color of the spot or the Rf value?

3.  from a plants piont of view what would happen if chlorophyll was polar?

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