A high concentration of indole smells like what?

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Study for the Flower Power Midterm Test. Enhance your botanical knowledge with flashcards and multiple-choice questions. Each question provides hints and detailed explanations. Get ready to ace your exam with confidence!

Multiple Choice

A high concentration of indole smells like what?

Explanation:
Concentration changes how indole is perceived. In tiny amounts it can contribute a delicate, floral note similar to jasmine, which is why it’s sometimes used in perfumes to add depth. But when indole is present in high amounts, the scent shifts to a strong, foul odor reminiscent of feces. This happens because the same molecule stimulates the olfactory system differently at higher concentrations, producing a harsh, animal-like smell instead of the floral hint seen at low levels. So, a high concentration of indole smells like feces.

Concentration changes how indole is perceived. In tiny amounts it can contribute a delicate, floral note similar to jasmine, which is why it’s sometimes used in perfumes to add depth. But when indole is present in high amounts, the scent shifts to a strong, foul odor reminiscent of feces. This happens because the same molecule stimulates the olfactory system differently at higher concentrations, producing a harsh, animal-like smell instead of the floral hint seen at low levels. So, a high concentration of indole smells like feces.

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