Theodore W. Engelmann illuminated a spectrum | vedclass

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(B) Theodore $W$. Engelmann performed a classic experiment using a prism to split light into its spectral components and then illuminated the green al

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Cladophora

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(B) Theodore $W$. Engelmann performed a classic experiment using a prism to split light into its spectral components and then illuminated the green alga $Cladophora$ placed in a suspension of aerobic bacteria.$1$. The bacteria were used to detect the sites of $O_2$ evolution.$2$. He observed that the bacteria accumulated mainly in the region of blue and red light of the split spectrum.$3$. This was the first action spectrum of photosynthesis described,which resembles the absorption spectra of chlorophyll $a$ and $b$.

Theodore $W$. Engelmann illuminated a spectrum on which alga to perform his classic experiment?

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