Theodor W Engelmann Illuminated a Filament of Algae with Light That

question 58

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. Which of the following statements describes a relationship that Engelmann's experiment helped to determine?

• A) the relationship between wavelength of light and the rate of aerobic respiration
• B) the relationship between wavelength of light and the amount of heat released
• C) the relationship between wavelength of light and the rate of photosynthesis
• D) the relationship between carbon dioxide concentration and the rate of photosynthesis

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Definitions:

Thomas Young

A British polymath known for his contributions to the fields of vision, light, solid mechanics, energy, physiology, and language.

Ganglion Cell

Ganglion cell refers to a type of neuron located in the retina that receives visual information from photoreceptors via bipolar cells and transmits it to the brain through the optic nerve.

Bipolar Cell

A type of neuron found in the retina of the eye, acting as an intermediary cell that transmits signals from the photoreceptors to the ganglion cells, which then send information to the brain.

Blind Spot

A point in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the optic disc of the retina, resulting in a lack of visual perception.