Theodor W Engelmann Illuminated a Filament of Algae with Light That

question 21

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.
-What did Engelmann conclude about the congregation of bacteria in the red and blue areas?

• A) Bacteria released excess carbon dioxide in these areas.
• B) Bacteria congregated in these areas due to an increase in the temperature of the red and blue light.
• C) Bacteria congregated in these areas because these areas had the most oxygen being released.
• D) Bacteria are attracted to red and blue light and thus these wavelengths are more reactive than other wavelengths.
• E) Bacteria congregated in these areas due to an increase in the temperature caused by an increase in photosynthesis.

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Definitions:

Imagined Characteristics

Attributes or qualities that are perceived or believed to exist, often without empirical evidence or based on stereotypes.

Attitude

A psychological tendency that is expressed by evaluating a particular entity with some degree of favor or disfavor.

Prejudice

A preconceived opinion or judgment formed without sufficient knowledge or just grounds, often leading to discrimination or negative social actions.

Athletic Superiority

Athletic superiority refers to the superior physical abilities, skills, and accomplishments of individuals or teams in sports and athletic competitions.