Bio 10 - 1) Neils experiment was based off the research of...

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1) Neil’s experiment was based off the research of purple sulfur bacteria, which he found did not release oxygen even though it was undergoing photosynthesis. Neil then proposed the equation CO 2 + 2H 2 A + Light Energy  (CH 2 O) + H 2 O + 2A where A is some element that serves as en electron donor. The bacteria release sulfur from the hydrogen sulfide and plants release water from the spilling of water not CO 2 .When isotopes were at the disposal of scientists, an experiment was conducted where green plants were fed with 18O. The results revealed that the oxygen ended up in the ‘A slot’ just as predicted. 2) A molecule’s absorption spectrum is the range of photons that can be taken up by the electrons. This means that when that packet of energy hits a molecule, a certain wavelength is needed to bump that electron up to the next energy level. Pigments, such as chlorophyll a and b, are good absorbers at a precise wavelength. The action spectrum helps to identify this relationship between how effective a molecule is at absorbing a photon along the absorption spectrum. 3) Chlorophylls and Carotenoids are the predominant light absorbers in plants.
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Bio 10 - 1) Neils experiment was based off the research of...

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