Common Errors for Photosynthesis Prac

If the light is at a fixed distance away from the extract, the light intensity is actually the same for all tubes.
Why is it that the tube that is subjected to white light turns green the fastest? Because it is exposed to all wavelengths of the visible spectrum, not because it is subjected to maximum light intensity.

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Plants reflect the green light (thus it appear green) which explains why it takes longer for DCPIP to be reduced with the green filter-------------------X (buzz out).

PLants still do absorb the green wavelength but to a lesser extent compared to all the other wavelengths!!! Most are reflected.

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