|MadSci Network: Anatomy|
Alissa, Your co-teacher is correct. When blood is fully oxygenated i.e. carrying two oxygen molecules, the conformation (shape) of the molecules allows blue and green light to be absorbed and redlight to be reflected hense giving it the red color. However, when the cell is fully deoxygenated then the conformation of the molecules allows light from the orange spectra to be absorbed and reflecting blue light giving blood a blue tinge. I have included an article that briefly explains this as well as its own refrences. It does a pretty good job depicting the molecular transformation of hemagloin oxygenated and deoxygenated. Sincerely, Mike http://geocities.com/mwatson514/Hemo.doc
Try the links in the MadSci Library for more information on Anatomy.