Theodor W Engelmann Illuminated a Filament of Algae with Light That

question 81

Multiple Choice

Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of algae to different wavelengths of light. He added aerobic bacteria and then noted in which areas the bacteria congregated. He noted that the largest groups were found in the areas illuminated by the red and blue light.
-An outcome of this experiment was to help determine

• A) the relationship between heterotrophic and autotrophic organisms.
• B) the relationship between wavelengths of light and the rate of aerobic respiration.
• C) the relationship between wavelengths of light and the amount of heat released.
• D) the relationship between wavelengths of light and the rate of photosynthesis.
• E) the relationship between the concentration of carbon dioxide and the rate of photosynthesis.

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