How would I compare the rate of photosynthesis in different light wavelengths? in which is Photo... highest?

Question

I am supposed to plan, design and predict results for an experiment to compare the rate of photosynthesis in different light wavelengths.
I was thinking of setting up the usual apparatus with elodea and in the beaker of water used for heat absorption, I would place different coloured food colourings at different times. However, my teacher suggested we use bromothymol blue and its colour change with carbondioxide in some way

Answer 1

Bromthymol blue can tell you when the carbon dioxide has been absorbed -- solution changes color. Photosynthesis should happen faster in red or blue/violet light than in green light.

Answer 2

whilst the plant is uncovered to monochromatic purple mild 700nm, in user-friendly terms between the Photosystems would be lively. consequently in user-friendly terms cyclic photophosphorylation occurs,which provides out much less quantity of capability which could be utilised for fixing Carbondioxide by potential of the 2d component of Photosynthesis rather Biosynthetic section (dark reaction). for this reason the value of photosynthesis decreases whilst the plant is uncovered to monochromatic purple mild(700nm).

Answer 3

My Professor can explain about this very well...
His e-mail id is: [e-mail]
He'll reply if he is free...