<p>The wavelengths of light absorbed by chlorophyll are similar to the wavelengths of light that are associated with the greatest amount of oxygen release by plants. Based on these observations which of the following is a reasonable hypothesis about the function of chlorophyll?</p>
<p>A. It plays a role in cell respiration
B. It plays a role in the light reactions of photosynthesis
C. It takes part in H2O release
D. It takes part in CO2 fixation
E. IT generates Energy</p>
<p>The answer given is B, but isn't oxygen released during light-independent reactions of photosynthesis in which case the answer should be D.</p>
<p>Please explain to me if I'm being really really stupid and missing a whole big part of the picture or if I'm right.</p>
<p>Thanks.</p>
<p>I honestly can't remember the details of photosynthesis, it's been over a year since I've looked at the material.</p>
<p>I think the question though is asking you to come to some sort of conclusion based only on the data/information they give you, instead of bringing in outside information. </p>
<p>The information tells you that when the greatest amount of O2 is released by plants, the wavelengths of the light associated with it is similar to the wavelengths of light adsorbed by the chlorophyll. So, it's logical to think that there's a connection between the chlorophyll and light reactions releasing oxygen.</p>
<p>^ Hopefully that's right, and I'm not leading you down the completely wrong path :P</p>
<p>in the light dependent reaction photolysis of water occurs.
its due to the photolysis that the photosystem I gets the electron to replace the one it loses.
and only after the photolysis of water occurs is oxygen produced.
so i think the answer b to that is correct.</p>
<p>You are supposed to base your answer only on the information that is given in the question.</p>
<p>thanks pals you are totally right, that was the big picture i was missing. thanks</p>