Of the following experimental results, which is the best direct evidence that ph
ID: 179027 • Letter: O
Question
Of the following experimental results, which is the best direct evidence that photosynthesis is more efficient at certain wavelengths of light than at others?
a. The absorbance spectrum of leaves had high peaks of absorbance in the red and blue regions of the spectrum.
b. Purified photosyntheic pigments were found to absorb light mostly in the red and blue area.
c. When placing motile bacterium dependent on oxygen in suspension with filamentous algae that were illuminated with a projected spectrum, the bacteria were found to cluster around red and blue regions.
d. Chromatography of leaf extracts revealed pigments of different colors.
e. All of the Above
Explanation / Answer
Answer: E; all the above options are correct.
The absorbance spectrum of leaves had high peaks of absorbance in the red and blue regions of the spectrum.
Purified photosyntheic pigments were found to absorb light mostly in the red and blue area.
When placing motile bacterium dependent on oxygen in suspension with filamentous algae that were illuminated with a projected spectrum, the bacteria were found to cluster around red and blue regions.
Chromatography of leaf extracts revealed pigments of different colors.
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